Category: CBSE Class 9

Here we are providing Online Education The Dear Departed Extra Questions and Answers Class 10 English Literature Reader, Extra Questions for Class 10 English was designed by subject expert teachers. https://ncertmcq.com/extra-questions-for-class-10-english/

Online Education for The Dear Departed Extra Questions and Answers Class 10 English Literature

The Dear Departed Extra Questions and Answers Short Answer Type

The Dear Departed Question Answer Question 1.
“Good gracious, that’s never them.” What does Amelia mean?
Answer:
Amelia’s father Abel Merryweather, who stays with her, has died. She wants to take a few things that belong to him for herself before her sister arrives. So she is worried that they may have come already.

The Dear Departed Part 1 Questions And Answers Question 2.
How did Mrs Slater plan to outshine the Jordans? What does it reveal about her character?
Answer:
Mrs Slater is dressed in black, but is not in complete mourning. She has got her husband to wear a black tailcoat, grey trousers, a black tie and a bowler hat. Victoria, her daughter, is wearing a white frock with a black sash. She feels she will outshine the Jordans as Ben and Elizabeth will not yet have thought about mourning.

The Dear Departed Lesson Questions And Answers Question 3.
Why does Mrs Slater decide to shift the bureau from grandfather’s room before the arrival of the Jordans? How does Henry react to the suggestion?
Answer:
Mrs Slater always wanted to have the bureau after grandfather died. She feels she can easily take it before . her sister arrives as it has been bought recently and her sister doesn’t know of it. She says if she leaves it in grandfather’s room, her sister will drive a hard bargain. Henry feels it is not sensitive or becoming to do that.

The Dear Departed Part 2 Questions And Answers Question 4.
“I suppose it’s in the family.” What does Henry mean by that?
Answer:
Amelia calls her sister Elizabeth heartless and insensitive. She also feels that as Elizabeth is selfish and greedy, she will soon arrive for her share of grandfather’s property. Henry implies that both the sisters are similar in nature.

The Dear Departed Part 1 Question And Answers Question 5.
“You must arrange with Elizabeth when you’re dividing things up.” What does this reveal of Henry’s character?
Answer:
This shows that Henry is fair. He does not want to cheat Elizabeth out of her fair share by grabbing things for himself. He feels it should be decided who is to take what, after Elizabeth arrives.

Dear Departed Questions And Answers Question 6.
Why wouldn’t Henry care to bring the bureau downstairs?
Answer:
Henry feels it is not delicate or sensitive to bring the bureau down. Abel Merryweather has just died and instead of mourning him, they were trying to grab his things?Moreover, he feels that it should be decided who is to take what, after Elizabeth arrives.

The Dear Departed Questions And Answers Question 7.
“Elizabeth could have that and welcome.” What does Amelia mean by that?
Answer:
Amelia plans to bring grandfather’s new bureau downstairs and put their own chest of drawers in grandfather’s room. This way Elizabeth will look upon it as her father’s property and lay claim to it. Amelia doesn’t mind letting go of it as it is old and shabby and she had always wanted to get rid of it.

The Dear Departed Question Bank Question 8.
What does Henry tell Victoria when she asks if they are pinching grandfather’s bureau?
Why does Henry want to hide the truth from Victoria? How does Mrs Slater handle the same situation?
Answer:
Henry tells Victoria that Grandpa had given it to her mother before he died. He does not want the sensitive young child to think poorly of her parents. So he wishes to hide the truth from her. On the other hand, Mrs Slater who is practical and brusque, tells Victoria to be quiet and not tell her aunt about it.

The Dear Departed Question Answer Degree Question 9.
“I thought I’d fetch this down as well.” What does Mrs Slater bring down? What does ‘as well’ mean in this context?
Answer:
Mrs Slater brought grandfather’s clock downstairs along with his bureau. In this context, ‘as well’ refers to the clock in addition to the bureau.

The Dear Departed 2 Questions And Answers Question 10.
What is the reason for the Jordans taking a long time to get to the house of the Slaters? What does it show about the two sisters’ attitude towards each other?
Answer:
The Jordans came late because they bought new mourning clothes and dressed up in them before reaching the Slaters’ residence. This shows that both the sisters were trying to get the better of each other all the time.

Dear Departed Comprehension Questions Question 11.
What does Mrs Jordan describe as ‘a fatal mistake’? What is the irony in the comment she makes on Mrs Slater’s defense?
Answer:
Mrs Jordan calls not calling in a doctor to see grandfather ‘a fatal mistake’ as the doctor may have saved Abel Merryweather’s life. It turns out that Abel Merryweather was alive. He realized his daughters were selfish and greedy and he decides to change his will.

Dear Departed 2 Comprehension Questions Question 12.
“Your father wasn’t drowned, Elizabeth.” Why does Henry say this?
Answer:
Elizabeth wanted to know why the Slaters had not called in a doctor to see their father when he was supposedly gone. She added that at times people who have been presumed dead were revived by doctors.
Henry tells her that such incidents have occurred only with people who drowned. Therefore, he states that Abel Merryweather had not died of drowning.

Question 13.
“If there was one thing he couldn’t bear it was water.” What does Ben mean by this joke? Whom is he talking about?
Answer:
Ben is talking about his father-in-law, Abel Merryweather. He implies that Abel did not wash as often as he should have and that he drank a lot. He did not drink water.

Question 14.
Ben appreciates grandfather saying “its’ a good thing he did.” Later he calls him a “drunken old beggar.” Why does he change his opinion about grandfather?
Answer:
Ben praises Abel Merryweather when he thinks that the old man has paid his insurance premium that morning and they will inherit his insurance money. But when Victoria Slater tells them that grandfather had not gone to pay the insurance premium that morning but had gone with his friend to the Ring-o’-Bells for drinks, Ben is angry and calls him a drunken old beggar as the insurance policy may have lapsed and there may be no money for them.

Question 15.
What amazing news does Victoria bring as she comes downstairs?
Answer:
Victoria brings the news that her grandfather was getting up and that she had seen him do so.

Question 16.
What makes grandfather ask, “What’s the matter with little Vicky?”
Answer:
As soon as Vicky saw grandfather get up, she was terrified and ran down. Abel Merryweather was puzzled to see his granddaughter run away from him in fear. That is why he asked that.

Question 17.
Why is Mrs Jordan disconcerted when Mrs Slater brings ir^the topic of the gold watch?
Answer:
Mrs Jordan claimed that grandfather had promised his gold watch to her son, Jimmy. She was disconcerted when Mrs Slater brings in the topic of the gold watch because she knew her lie would be out.

Question 18.
How does the truth about the bureau come out?
Answer:
Grandfather, talking about his condition, says he had been in a daze and not asleep. At that point, he recollects Amelia and Henry had come to his room and shifted his bureau out.

Question 19.
How does Amelia get even with her sister?
Answer:
When Elizabeth tries to convince her father to go and live with her, she tells Abel that she and her sister had quarrelled because Elizabeth had said she wouldn’t take him off their hands at any price. She adds that Elizabeth had said she had enough of him to last a lifetime, and the Slaters would have to keep him.

Question 20.
What change does Abel Merryweather plan to make in his new will? What effect does it have on his daughters?
Answer:
Abel Merryweather said that he will change his will, stating that his money and his bits of things would go to whomever he was living with when he died. His daughters at once began to fight as each wanted to keep him with her, while earlier they had fought over not wanting to keep him.

Question 21.
What were the three things grandfather planned to do on Monday next?
Answer:
On Monday next, grandfather planned to do three things. He planned to go to the lawyer’s and alter his will leaving all he had to the person he was staying with, at the time of his death. He also planned to go to the insurance office and pay his premium. The third thing was to go to St Philip’s Church and get married to Mrs John Shorrocks.

Question 22.
In what way is the play The Dear Departed a satirical comment on the nature of human beings?
Answer:
The play brings out the greed and selfishness of people for whom money is more important than relationships. They are more interested in what they will inherit and try to grab the lion’s share.

The Dear Departed Extra Questions and Answers Long Answer Type

Question 1.
Bring out the irony in the title of the play.
Answer:
The title The Dear Departed refers to the death of a loved one but Abel Merryweather is neither dearly loved nor departed. The daughters do not mourn his death. They wanted to grab whatever belongings they can after his death. He was not dead but merely drunk.

Question 2.
Write a character sketch of Mrs Slater.
Answer:
Mrs Slater is greedy and wants to take some of grandfather’s things she likes before her sister arrives. She is overbearing and gets the reluctant Henry to help her shift the bureau and also put on grandfather’s slippers. She is straight talking, rude and impolite to her sister. She lacks feelings and hurts grandfather by telling him that Elizabeth did not wish to keep him.

Question 3.
Write a character sketch of Mrs Jordan.
Answer:
Mrs Jordan is greedy and arrives to take her share of grandfather’s things though she had vowed never to enter the house. She is bothered by appearances and comes dressed in new mourning. She is overbearing and dominates Ben. She is rude and impolite to her sister and lacks feelings and hurts grandfather by telling him that Amelia had started stealing soon as she had realised he was no more.

Question 4.
How does the spat between his daughters lead to grandfather discovering the truth?
Answer:
He hears about the spat between his daughters when he gets up. Elizabeth shows him the bureau and the clock grabbed by Amelia. Amelia talks about the gold watch supposedly promised to Jimmy. He realises the truth behind the fight. He knows that Amelia wanted to get rid of him two years ago and Elizabeth didn’t want him either.

Question 5.
Compare and contrast Henry’s character with that of his wife. Support your answer with evidences from the play.
Answer:
She is greedy and wants to take some of grandfather’s things she likes before her sister arrives. She is overbearing and gets the reluctant Henry to help her shift the bureau and also put on grandfather’s slippers. She is straight talking, while Henry tells Victoria that grandfather had promised the bureau to them, she just tells Victoria to be quiet and not tell her aunt. She is rude and impolite to her sister and lacks feelings. She hurts grandfather by telling him that Elizabeth did not wish to keep him.

Henry is sensitive and does not wish to take the slippers or the bureau. He has a weaker character and allows himself to be dominated by Amelia. He is evasive and hides from the ugly truth. He tells Victoria that grandfather had promised them the bureau.

Question 6.
In the play the two daughters do not seem to be concerned at their father’s death. Do you think it is proper? If not, why?
(Encourage students to think creatively and formulate their own answers.)

Question 7.
How are the two sisters exposed in the play The Dear Departed?
Answer:
They are portrayed as greedy. Amelia is after the bureau and the clock and Elizabeth wants the gold watch. But since grandfather is alive, the truth behind the spat comes out.

Question 8.
Narrate the story of The Dear Departed from the point of view of Abel Merryweather.
Answer:
I went out to the pub and came home and fell asleep. Due to the sudden turn, I couldn’t move or speak. I saw Amelia and Henry come in my room and take the bureau but I couldn’t stop them or ask them why they were doing that. I heard voices and tried to get up but little Vicky came in, saw me and got frightened. Downstairs my daughters and sons-in-law presumed that I was dead and started grabbing my things. I am going to get married and shift out soon, as I do not want to stay with such greedy people.

Question 9.
Victoria in The Dear Departed is very upset by the behaviour of her parents. She expresses her feelings in a diary entry. As Victoria, write the diary entry.
Answer:
My grandfather is dead. The greed shown by my parents as well as by my aunt and uncle under the circumstances is appalling. Each one is more interested in benefits derived from this situation rather than grieving over their father and I am completely saddened by their attitudes.

Question 10.
In what way is the play The Dear Departed a satirical comment on the nature of human beings?
Answer:
In The Dear Departed, the playwright William Stanley Houghton highlights the degradation of moral values and the weakening relationships between the members of the family. He brings out the greed and selfishness of people for whom money is more important than relationships. The drama depicts how present generation is reacting towards the elders. They are more interested in what they will inherit and try to grab the lion’s share.

The Dear Departed Extra Questions and Answers Reference to Context

Read the extracts and answer the questions that follow.

Question 1.
“She’ll come fast enough after her share of what grandfather’s left. You know how hard she can be when she likes. Where she gets it from I can’t tell.”

(a) Who speaks these words and about whom?
(i) Mrs Slater about Victoria
(ii) Victoria about Mrs Jordan
(iii) Mrs Jordan about Mrs Slater
(iv) Mrs Slater about Mrs Jordan

(b) The speaker implies that ‘she’ is:
(i) cruel.
(ii) selfish.
(iii) generous.
(iv) loving.

(c) The literary device used in the above lines is:
(i) irony.
(ii) personification.
(iii) alliteration.
(iv) metaphor.

Question 2.
“Are we pinching it before Aunt Elizabeth comes?”

(a) What does ‘it’ refer to here?
Answer:
It refers to the bureau belonging to Abel Merry weather.

(b) How does Vicky conclude that her parents are ‘pinching it’?
Answer:
Vicky concludes her parents are pinching it because it belonged to grandfather and they are taking it without permission after his death.

(c) Mention the two realsons that Mrs Slater gives for her action.
Answer:
Mrs Slater says that she has always wanted it and if her sister Elizabeth were to see it, she would drive a hard bargain over it.

(d) What does it reveal about the difference between the attitude of the elders and that of Vicky?
Answer:
The elders are out for what they can get while Victoria has more of a sense of what is right.

Question 3.
“Be off now, and change your dress before your Aunt Elizabeth and your Uncle Ben come. It would never do for them to find you in colours.”

(a) Who says these words aind to whom?
Answer:
These words are spoken by Amelia Slater to her daughter Victoria.

(b) Why does she disapprove of the listener being in colours?
Answer:
Abel Merryweather, Amelia’s father, has died and so they should be in mourning and not wearing colours.

(c) Bring out the irony in the above statement.
Answer:
Victoria, the one in colours, is actually the only one who is mourning her grandfather’s death. Herein lies the irony.

Question 4.
“I’m wondering if they’ll come at all. When you and Elizabeth quarrelled she said she’d never set foot in your house again.”

(a) Where will ‘she’ not come?
Answer:
‘She’, that is, Elizabeth, was not expected to come to Amelia and Henry’s house.

(b) Why will she not come?
Answer:
Elizabeth was not expected to come because the two sisters had a quarrel.

(c) Why, according to the listener, will she come?
Answer:
Elizabeth would come to claim her share of what their father had left behind, in the opinion of the listener.

Question 5.
“You know how hard she can be when she likes. Where she gets it from I can’t tell.”

(a) Who says this and about whom?
Answer:
Amelia says this about her sister Elizabeth.

(b) Why does the speaker call her hard?
Answer:
Amelia says that Elizabeth will want her share of grandfather’s property and she will not compromise. She will drive a hard bargain because she is seeking to obtain money at every opportunity.

(c) Bring out the irony in the statement ‘Where she gets it from I can’t tell’?
Answer:
The irony in the statement is that even Amelia is hard and greedy like her sister Elizabeth.

Question 6.
They’ll stretch, won’t they? I’m not going to have them wasted.

(a) What is ‘they’?
Answer:
‘They’ refers to Abel Merry weather’s slippers.

(b) What does she want the listener to do? Why?
Answer:
Amelia wants Henry to wear those slippers as they are new and his own slippers are old and worn out.

(c) Why does she say ‘they’ will stretch?
Answer:
The slippers are small for Henry. Amelia says they will stretch once he starts wearing them.

Question 7.
Now, Amelia, you mustn’t give way. We’ve all got to die some time or other. It might have been worse.

(a) Who is the speaker of these lines?
Answer:
The speaker of these lines is Ben Jordan.

(b) What prompts the speaker to say these words?
Answer:
Amelia is giving way to her grief at Abel Merryweather’s death. This prompts Ben to say these words.

(c) What does he mean when he says ‘It might have been worse’?
Answer:
Ben means that it could have been one of them who had died instead of Abel Merryweather.

(d) What does it reveal about the speaker’s character?
Answer:
It shows his callousness at the death of Abel Merryweather.

Question 8.
BEN: You should have gone for another. Eh, Eliza?
MRS JORDAN: Oh, yes. It’s a fatal mistake.

(a) What does Ben mean by ‘another’?
Answer:
Ben means another doctor as Dr Pringle, Abel Merryweather’s doctor was unavailable.

(b) Why does Mrs Jordan call it a fatal mistake?
Answer:
Mrs Jordan calls it a fatal mistake because she feels a doctor may have saved Abel Merryweather’s life.

Question 9.
“He always was thoughtful in that way. He was too honourable to have ‘gone’ without paying his premium.”

(a) Where is Abel Merryweather supposed to have gone that morning?
Answer:
Abel Merryweather was supposed to pay the premium on his insurance.

(b) Why is he said to be thoughtful?
Answer:
Abel Merryweather is said to be thoughtful since he paid the premium so that the two daughters, Amelia and Elizabeth, would get the insurance money.

(c) Bring out the irony in the above statement?
Answer:
Abel Merryweather had not gone to pay the premium on his insurance but to the pub for a drink.

Question 10.
“I don’t call that delicate, stepping into a dead man’s shoes in such haste.”

(a) Who makes this comment?
Answer:
Mrs Jordan makes this comment.

(b) What prompts the speaker to say this?
Answer:
The speaker is prompted to say this when she sees Henry Slater wearing Abel Merryweather’s slippers.

(c) Bring out the significance of this statement.
Answer:
The Slaters and Jordans have started dividing Abel Merryweather’s things among themselves as soon as they presume him to be dead. Herein lies the irony as both the daughters are acting in the same greedy manner.

Question 11.
“And you, too. Are you such a poor creature that you must do every dirty thing she tells you?”

(a) Who is the ‘poor creature’?
Answer:
Henry Slater is the ‘poor creature’.

(b) Why is he being called a ‘poor creature’?
Answer:
Henry is called a ‘poor creature’ since he does not stand up to his wife and does everythinglthat she tells him to do.

(c) What dirty deed had he done at her bidding?
Answer:
At her bidding, Henry had shifted his father-in-law’s bureau and clock to their room in order to keep it to themselves.

In this page, we are providing Online Education for Sound Class 9 Extra Questions and Answers Science Chapter 12 pdf download. NCERT Extra Questions for Class 9 Science Chapter 12 Sound with Answers will help to score more marks in your CBSE Board Exams. https://ncertmcq.com/extra-questions-for-class-9-science/

Online Education for Class 9 Science Chapter 12 Extra Questions and Answers Sound

Extra Questions for Class 9 Science Chapter 12 Sound with Answers Solutions

Sound Class 9 Extra Questions Very Short Answer Type

Class 9 Science Chapter 12 Extra Questions And Answers Question 1.
What are longitudinal waves?
Answer:
A wave in which the particles of the medium vibrate back and forth in the ‘same direction’ in which the wave is moving, is called as a longitudinal wave.

Class 9 Science Chapter Sound Extra Question Answer Question 2.
What are transverse waves?
Answer:
A wave in which the particles of the medium, vibrate up and down ‘at right angle’ to the direction in which the wave is moving, is called a transverse wave.

Sound Class 9 Extra Questions Answers Question 3.
Define wavelength. What is its symbol and its SI unit?
Answer:
The distance between two consecutive compressions (C) or two consecutive rarefactions (R) is called the wavelength. The wavelength is denoted by (Greek letter ‘lambda’). Its SI unit is the metre (m).

Sound Class 9 Extra Questions Question 4.
Define frequency. What is its symbol and its SI unit?
Answer:
The number of complete waves (or cycles) produced per second is called a frequency of sound waves. It is denoted by f. The SI unit of frequency is hertz (Hz).

Sound Class 9 Worksheet With Answers Question 5.
What is one hertz?
Answer:
A vibrating body producing 1 wave per second is said to have a frequency of 1 Hz.

Sound Extra Questions And Answers Class 9 Question 6.
Define amplitude. What is its symbol and its SI unit?
Answer:
The magnitude of the maximum disturbance in the medium on either side of the mean value is called the amplitude of wave. It is denoted by A. The SI unit is the metre (m).

Sound Chapter Class 9 Extra Questions Question 7.
What is ‘audible’ sound?
Answer:
The sound which we are able to hear is called ‘audible’ sound. The audible range of sound for human beings extends from about 20 Hz to 20000 Hz.

Extra Questions On Sound Class 9 Question 8.
What do you mean by an echo?
Answer:
The repetition of sound caused by the reflection of sound waves is called an ‘echo’.

Numericals On Sound For Class 9 Question 9.
What do you understand by the terms “compression” and rarefaction?
Answer:
A region of high pressure of a medium when a sound wave travels through it is called compression.
A region of low pressure of a medium when a sound wave travels through it is called rarefaction.

Class 9 Science Sound Extra Questions Question 10.
What do you understand by the pitch of a sound?
Answer:
Pitch of a sound is the characteristic of sound that depends on the frequency received by a human ear.

Extra Questions Of Sound Class 9 Question 11.
What do you understand by the loudness of sound?
Answer:
The amplitude of the vibrating body determines the loudness of the sound. Larger the amplitude of vibration, larger the loudness of the sound produced.

Sound Chapter In Physics Class 9 Questions And Answers Question 12.
Define the characteristic “timbre” or “quality” of a sound.
Answer:
Quality or timbre is a characteristic of a sound which enables us to distinguish between two sounds of the same loudness and pitch.

Sound Class 9 Important Questions With Answers Question 13.
What is Sonar?
Answer:
Sonar is a device that uses ultrasonic wave to measure the distance, direction and speed of the underwater object.

Class 9 Sound Extra Questions Question 14.
What is Echocardiography?
Answer:
The technique of obtaining images of the heart by using the reflection of ultrasonic waves from various parts of the heart is called echocardiography.

Class 9 Science Chapter Sound Extra Question & Answer Question 15.
What is ultrasonography?
Answer:
The technique of obtaining images of internal organs of the body by using echoes of ultrasonic waves is called ultrasonography.

Question 16.
What is a stethoscope?
Answer:
The stethoscope is a medical instrument used for listening sounds produced within the body, chiefly in the heart or lungs.

Question 17.
What are infrasonic waves?
Answer:
The waves of frequency less than 20 Hz are called infrasonic waves.

Question 18.
What is ultrasound?
Answer:
The waves of frequency greater than 20,000 Hz are called ultrasonic waves or ultrasound.

Question 19.
Speed of sound is more on a hotter day. Explain why.
Answer:
Speed of sound increases with increase in temperature.

Question 20.
WrIte down the SI unit of (i) frequency (ii) wavelength.
Answer:
SI unit of wavelength is m and frequency is Hz.

Sound Class 9 Extra Questions Numericals

Question 1.
The sound produced by a thunderstorm is heard 10 s after the lightning is seen. Calculate the approximate distance of the thunder cloud. (Given the speed of sound = 340 ms’).
Ans. Given, t = 10 s
υ = 340 m/s
distance, x = υ x t = 340 x 10 = 3400 m.

Question 2.
What is the frequency of wave with time period 0.025 s?
Answer:
Given, t = 0.025 s
frequency, v = \(\frac{1}{t}=\frac{1}{0.025}\) = 40 Hz.

Sound Class 9 Extra Questions Short Answer Type 1

Question 1.
What is sound? When is the sound produced? Give examples.
Answer:
The sensation felt by our ears is called sound. A sound is a form of energy which makes us hear. When an object is set into vibrations, the sound is produced. For example, the vibrating diaphragm of a drum produces sound, the vibrating string of a guitar produces sound, the vibrating diaphragm of speakers of a radio produce sound, the vibrating end of a drilling machine produces sound, etc.

Question 2.
State the conditions to hear an echo.
Answer:
The conditions to hear an echo are:

1. Echo can be heard only if it is produced at least \(\frac {1}{10}\) th of a second (0.1 s) after the original sound.

2. The speed of sound in air is 344 m/s. Let us calculate the minimum distance from the reflecting surface, which is necessary to hear an echo.

∴ Distance travelled = 344 x \(\frac {1}{10}\) = 34.4 metres
Thus, the distance travelled by the sound in \(\frac {1}{10}\) th of a second is 34.4 m. This means that the minimum distance between the source of the sound and the listeners should be 17.2 metres.

3. Echo can be heard only if the reflecting surface is large.

Question 3.
Bats search out prey and fly in the dark night by emitting ultrasound. Explain.
Answer:
Bats search out prey and fly in the dark night by emitting and detecting reflections of ultrasonic waves. The high-pitched ultrasonic squeaks of the bat are reflected from the obstacles or prey and returned to bat’s ear. The nature of reflections tells the bat where the obstacle or prey is and what it is like.

Question 4.
Mention one advantage and one disadvantage of reverberation.
Answer:
A certain amount of reverberation improves the quality of sound of orchestral and choral music. However excessive reverberation makes the speech or music indistinct.

Question 5.
How does a megaphone works?
Answer:
A megaphone works on the principle of reflection of sound. In this instrument, a tube followed by a conical opening reflects sound successively to guide most of the sound from the source in the forward direction towards the audience.

Sound Class 9 Extra Questions Numericals

Question 1.
If the velocity of sound in air is 340 ms^-1. Calculate
1. wavelength when the frequency is 256 Hz.
2. frequency when the wavelength is 0.85 m.
Answer:
Given,
velocity of sound, υ = 340 m/s
1. v = 256 Hz
using, υ = λ v
λ = \(\frac {υ}{λ}\) = \(\frac {340}{256}\) = 1.33m

2. λ = 0.85
using, u = λv
λ = \(\frac {υ}{λ}\) = \(\frac {340}{0.85}\) = 400Hz

Question 2.
30 waves pass through a point in 3 seconds. If the distance between two crests is 2 m. Calculate
(a) frequency
(b) wavelength.
Answer:
30 waves in 3 seconds
υ = \(\frac {30}{3}\) = 10Hz
∴ λ = 2m.

Sound Class 9 Extra Questions Short Answer Type 2

Question 1.
What is the reflection of sound? State the laws of reflection.
Answer:
The bouncing back of sound from a hard surface is called a reflection of sound. The laws of reflection are:
1. The incident sound wave, the reflected sound wave and the normal at the point of incidence, all lie in the same plane.
2. The angle of incidence of sound is always equal to the angle of reflection of sound.

Question 2.
On what factor does the speed of sound depend?
Answer:
The speed of sound depends upon the following:

• The nature of the material (or medium) through which it travels. In general, sound travels fastest in solids, slower in liquids and slowest in gases.
• The humidity of the air. As the humidity of air increases, sound travels faster. Sound has more speed in humid air than in dry air.
• The temperature. The speed of sound in air at 0°C is 332 m/s whereas at 20°C, it is 344 m/s. Thus, as the temperature rises, the speed of sound also increases.

Question 3.
Write a note on ‘ultrasonic sounds’.
Answer:

• The sounds of frequencies higher than 20,000 Hz are known as ‘ultrasonic sounds’ (or just‘ultrasounds’).
• Human beings cannot hear ultrasonic sounds. Children under the age of five and some animals, such as dogs can hear sounds up to 25,000 Hz.
• As people grow older, their hearing sensation for higher frequencies becomes weaker.
• Ultrasonic sounds are used by dolphins, bats and porpoises to navigate in dark and to catch their prey.
• Some moths can hear high-frequency ultrasonic squeaks of the bat and know when a bat is flying nearby and are able to escape capture. Rats also play games by producing ultrasound.

Question 4.
Write three differences between transverse and longitudinal waves.
Answer:
Transverse waves:

• In the transverse waves, the particles of the medium vibrate perpendicular to the direction of wave motion.
• These waves travel in the form of alternate crest and trough.
• These waves can be transmitted through solid or liquid surfaces.

Longitudinal waves:

• In longitudinal waves, the particles of the medium vibrate along the direction of wave motion.
• These waves travel in the form of alternate compression and rarefactions.
• These waves can be transmitted through all the three types of media viz., solid, liquid and gases.

Question 5.
Write down three differences between a sound wave and lightwave.
Answer:
Sound wave:

• It travels in the form of longitudinal waves.
• It requires a medium for its propagation.
• It travels through air with a speed of 332 propagation. m/s at 0°C.

Lightwave:

• It travels in the form of a transverse wave.
• It does not require a medium for its propagation.
•  It travels through air with a speed of nearly 3 x 10⁸ m/s.

Sound Class 9 Extra Questions Long Answer Type

Question 1.
State three applications of reflection of sound.
Answer:
1. Megaphone and a bulb horn: Megaphones or loudhailers, horns, musical instruments such as trumpets and she Hana is, are all designed to send sound in a particular direction without spreading it in all directions, as shown in the figure. In these instruments, a tube followed by a conical opening reflects sound successively to guide most of the sound waves from the source in the forward direction towards the audience.

2. Stethoscope: Stethoscope is a medical instrument used for listening to sounds produced within the body, chiefly in the heart or lungs. In stethoscopes, the sound of the patient’s heartbeat reaches the doctor’s ears by multiple reflections of sound, as shown in the figure.

3. Soundboard: Generally the ceiling of concert halls, conference halls and cinema halls are curved so that sound after reflection reaches all corners of the hall, as shown in the figure. Sometimes a curved soundboard may be placed behind the stage so that the sound, after reflecting from the soundboard, spreads evenly across the width of the hail (Fig).

Question 2.
State the applications of ultrasound.
Answer:
Ultrasounds are high-frequency waves. Ultrasounds are able to travel along well-defined paths even in the presence of obstacles. Ultrasounds are used extensively in industries and for medical purposes.

1. Ultrasound is generally used to clean parts located in hard-to-reach places, for example, spiral tube, odd-shaped parts, electronic components, etc. Objects to be cleaned are placed in a cleaning solution and ultrasonic waves are sent into the solution. Due to high frequency, the particles of dust, grease and dirt get detached and drop out. The objects thus get thoroughly cleaned.

2. Ultrasounds can be used to detect cracks and flaws in metal blocks. Metallic components are generally used in the construction of big structures like buildings, bridges, machines and also scientific equipment. The cracks or holes inside the metal blocks, which are invisible from outside reduces the strength of the structure.

Ultrasonic waves are allowed to pass through the metal block and detectors are used to detect the transmitted waves. If there is even a small defect, the ultrasound gets reflected back indicating the presence of the flaw or defect.

3. Ultrasonic waves are made to reflect from various parts of the heart and form the image of the heart. This technique is called ‘echocardiography’.

4. An ultrasound scanner is an instrument which uses ultrasonic waves from getting images of internal organs of the human body. A doctor may image the patient’s organs such as liver, gall bladder, uterus, kidney, etc. It helps the doctor to detect abnormalities, such as stones in the gall bladder and kidney or tumours in different organs.

In this technique, the ultrasonic waves travel through the tissues of the body and get reflected from a region where there is a change of tissue density. These waves are then converted into electrical signals that are used to generate images of the
organ.

These images are then displayed on a monitor or printed on a film. This technique is called ‘ultrasonography’. Ulträsonography is also used for examination of the foetus during pregnancy to detect congenital defects and growth abnormalities.

5. Ultrasound may be employed to break small ‘stones’ formed in the kidneys into fine grains. These grains later get flushed out with urine.

Sound Class 9 Extra Questions HOTS

Question 1.
Why do we hear the sound produced by the humming bees while the sound of vibrations of a pendulum is not heard?
Answer:
This is because the frequency of the sound produced by humming bees lies in audible range and frequency of the sound of vibrations of pendulum lies in the infrasonic region.

Question 2.
Sounds of same loudness and pitch but produced by different musical instruments like a violin and flute are distinguishable.
Answer:
It is the quality of sound which enables us to distinguish between two sounds of the same loudness and pitch.

Question 3.
Which of the two graphs (a) and (b) shown in the figure below represents the human voice is likely to be the male voice? Give a reason for your answer. (NCERT Exemplar)

Answer:
Graph a represents the male voice because the frequency of male voice is less than that of the female voice.

Question 4.
The given graph (Fig.) shows the displacement versus time relation for a disturbance travelling with velocity 1500 ms^-1. Calculate the wavelength of the disturbance. (NCERT Exemplar)

Answer:
Here, frequency, u = \(\frac {1}{T}\)
T = 2 ms = 2 x 10^-6 s
Hence υ = \(\frac{1}{2 \times 10^{-6}}\) = 5 x 10⁵ Hz
using relation, λ. = \(\frac{v}{v}=\frac{1500}{5 \times 10^{5}}\) = 3 x 10^-2 m

Question 5.
For hearing the loudest ticking sound heard by the ear, find the angle x in the Figure. (NCERT Exemplar)

Answer:
Here angle of incidence,
i = 90° – 50° = 40°
Angle of incidence (i) or Angle of reflection (x)
x = i = 40°.

Sound Class 9 Extra Questions Value Based (VBQs)

Question 1.
Sumeet went to a hill station with his parents and elder sister Kirti. He was experiencing the scenic beauty of a hill station for the first time. One day they were walking in a forest area, Sumeet loudly called out ‘Kirti Didi’. He was surprised that he could distinctly hear the same sound twice. He discussed this with his sister and she explained the reason behind this echo.
Answer:
(a) The repetition of sound caused by the reflection of sound waves is called an echo.
(b) Kirti is intelligent and helpful.

Question 2.
Tinku studies in class 9th. Once he was suffering from cold and cough and was running a high temperature. His mother took him to a doctor. The doctor examined the chest and back of Tinku with the help of a device ‘stethoscope’. While examining with stethoscope doctor asked Tinku to take longer breaths. After examining Tinku, the doctor prescribed some drugs.

By regular use of these drugs, Tinku was normal within four days. But he could not understand the purpose of being examined by the use of a stethoscope. During winter break his cousin Honey, who was studying in a medical college, visited their place. On the request of Tinku, Honey explained the purpose of the stethoscope and its action.
(a) What is a stethoscope?
(b) What quality was shown by Honey?
Answer:
(a) The stethoscope is a medical instrument used for listening to sounds produced within the body, chiefly in the heart or lungs.
(b) Honey is intelligent and helpful.

Question 3.
On a hot summer afternoon, a man was shouting through a megaphone. He was ‘zip-repairer’. As Arshi was preparing for her examination, she got disturbed. She inquired her father about the instrument being used by the ‘zip-repairer’. The father told her that it was a megaphone also known as ‘loud hailer’.
(a) State the principle on which the megaphone works.
(b) Why did Arshi get disturbed?
Answer:
(a) Megaphone works on the principle of multiple reflections.
(b) Arshi got disturbed by noise pollution.

Question 4.
Reena’s grandmother took her mother to a doctor as she was four months pregnant for ultrasonography. But she showed her interest in determining whether the child is a boy or a girl. The doctor was annoyed and refused to disclose the gender of the child.
(a) What is ultrasonography?
(b) Write down the values shown by the doctor.
Answer:
(a) The technique of obtaining images of internal organs of the body by using echoes of ultrasound waves is called ultrasonography.
(b) A Doctor is a law-abiding person.

Here we are providing Online Education The Bishop’s Candlesticks Extra Questions and Answers Class 9 English Literature Reader, Extra Questions for Class 9 English was designed by subject expert teachers. https://ncertmcq.com/extra-questions-for-class-9-english/

Online Education for The Bishop’s Candlesticks Extra Questions and Answers Class 9 English Literature

The Bishop’s Candlesticks Extra Questions and Answers Short Answer Type

Answer the following questions briefly.

The Bishop’s Candlesticks Questions And Answers Question 1.
Although it was quite late at night why had the Bishop not returned?
Answer:
The Bishop had gone out to see Marie’s mother who was unwell. He had gone to pray with her and to call in . the doctor to see her. Thus he had not returned.

The Bishop’s Candlesticks Short Questions And Answers Question 2.
Why does Persome feel people pretend to be sick?
Answer:
Persome feels that people pretend to be sick to have the Bishop call on them as they are fond of him.

The Bishop’s Candlesticks Extra Questions And Answers Question 3.
What did the Bishop give Marie as she was going out? Why? What trait of the Bishop’s character does it highlight?
Answer:
As Marie was going out, the Bishop gave her his comforter, as it was a cold and windy night. This shows the Bishop to be a caring and a generous person.

The Bishop’s Candlesticks Questions And Answers Class 8 Pdf Question 4.
Why were the doors in the Bishop’s house never bolted?
Answer:
The doors in the Bishop’s house were left open so that anyone needing help could come in freely, at any time.

The Bishop’s Candlesticks Long Questions And Answers Question 5.
Who was Jeanette? What was the cause of her death?
Answer:
Jeanette was the convict’s wife. The cause of her death was starvation and sickness.

The Bishop’s Candlesticks Questions And Answers Pdf Question 6.
The convict says, “I am too old a bird to be caught with chaff.” What does he mean by this statement?
Answer:
The convict means that he is too experienced a person to be trapped by soft, gentle words.

Bishop Candlesticks Question And Answers Question 7.
Why was the convict sent to prison? What was the punishment given to him?
Answer:
The convict had stolen money to buy food for his dying wife. He was sentenced to a prison ship where he was chained like an animal and fed on filth. He was lashed if he complained.

The Bishop’s Candlesticks Questions And Answers Class 9 Question 8.
Why is the convict eager to reach Paris?
Answer:
The convict is a runaway prisoner. If he reaches Paris, which is a big city, he can get lost there and that the police would not able to find him.

Bishop’s Candlesticks Question And Answers Question 9.
Before leaving, the convict asks the Bishop to bless him. What brought about this change in him?
Answer:
The Bishop’s kindness and faith in him and his forgiveness brought about a change in the conviet.

The Bishop’s Candlesticks Extra Questions and Answers Long Answer Type

The Bishop’s Candlesticks Questions And Answers Class 9 Pdf Question 1.
What is the theme of the play “The Bishop’s Candlesticks”?
Answer:
The play deals with the redemption of a soul through love and forgiveness. The convict, who was sent to the prison ships for stealing money to buy food for his sick wife, was treated inhumanely. He was chained and lashed with whips. This inhuman treatment turned the man into a beast who was ready to steal and kill. The kind-hearted and benevolent Bishop, always ready to lend a helping hand to anyone in distress, softened the convict’s heart.

His love and compassion turned the beast into a man again. Touched by the Bishop’s forgiveness, the convict sought his blessings. Thus, the play also brings the message that the aim of punishment should be reformation of the wrongdoer through making him realise his guilt and not turning a law-abiding citizen into a criminal.

The Bishop Candlestick Question Answer Question 2.
The convict says, “They have made me what I am, they have made me a thief.” Explain the circumstances that made the convict a thief.
Answer:
Ten years ago, the convict lived in a small cottage with his wife, Jeanette. His wife fell seriously ill. At that time the convict was without a job. Jeanette needed food and medicine. So he stole money to buy her food. He was caught and sent to the prison ships. Here he was treated very badly. He was chained and lashed with whips. He was treated not like a human being but as an animal. His name and soul were taken away from him. This inhuman treatment changed the man into a beast.

The Bishop’s Candlesticks Reference To Context Question 3.
Describe the Bishop in your own words with examples from the lesson.
Answer:
The Bishop is a loving and self-sacrificing person. The people in the parish send for him whenever they are in trouble and he rushes to their aid in all kinds of weather, unmindful of his personal comfort. So much so that he has sold all his possessions, except for a pair of silver candlesticks given to him by his dying mother, to help the poor. His sister Persome says, “His estate is sold, his savings have gone. His furniture, everything. Were it not for my little dot we should starve!” The Bishop is a caring person and he wraps his comforter around Marie when she is about to go out into the cold night air.

The Bishop’s innocence and naivete often earn for him the anger of his sister, Persome. But he gently remarks, “If people lie to me they are poorer, not I.” Being a compassionate man, the Bishop is heard lamenting, “There is so much suffering in the world, and I can do so very little.” He is kind and generous towards the convict. The convict enters his house stealthily, threatens him with a knife, and after receiving food and hospitality from the Bishop, steals his candlesticks.

But when the gendarmes bring him back to the Bishop’s house, the Bishop claims he has given the candlesticks to the convict. It is this compassion that changes the convict. The Bishop is also a deeply religious and pious man. He advises the convict to lead a good life as “this poor body is the Temple of the Living God.”

Question Answer Of The Bishop’s Candlesticks Question 4.
The Bishop’s sister is more practical than him. Discuss the character of Persome as seen in the play.
Answer:
The Bishop’s sister, Persome was more practical in many ways as compared to her brother. She was a short tempered woman who is seen quick to rebuke and is also found getting angry at Mere Gringoire for asking money from her brother. Most of her faults seem to be borne out of her live and concern for her brother. She loves her brother to a fault and is very protective of him. She feels people take advantage of his kindness and generosity.

She is more practical because unlike her brother, the bishop who sees no merit or value in the treasures of the world but only cares for people. She, on the other hand, is shrewd because she feels she has to take of her brother and fend off people from taking advantage. She sees her brother’s act of selling the silver salt shakers as irresponsible because it was a valuable item. She also disapproves of her brother giving away all their possessions to help other people because that way they would have nothing left. She is practical in worldly and materialistic matters.

The Bishop’s Candlesticks Extra Questions and Answers Reference to Context

Read the extracts given below and answer the questions that follow.

Bishop’s Candlesticks Questions And Answers Question 1.
“Monseigneur, the Bishop is a… ahem!”

(a) Who is the speaker? Who is being spoken to?
Answer:
Persome is the speaker here. She is speaking to the maid, Marie

(b) Why does the speaker not complete the sentence?
Answer:
Persome does not complete the sentence as she did not wish to criticize the Bishop in front of Marie.

(c) What is the meaning of the word monseigneur?
Answer:
The word ‘monseigneur’ is a title that is given to senior Roman Catholic priests and officials.

The Noble Bishop Question Answers Question 2.
“She sent little Jean to Monseigneur to ask for help. ”

(a) Who sent little Jean to the Bishop?
Answer:
Mere Gringoire sent little Jean to the Bishop.

(b) Why did she send Jean to the Bishop?
Answer:
She needed money for rent and knew that he was a generous person thus she sent him to the Bishop.

(c) What was Persome’s reaction?
Answer:
Persome was angry with Mere Gringoire’s impudence.

Question 3.
“I offered to take her in here for a day or two, but she seemed to think it might distress you. ”

(a) Who wanted to take whom in and why?
Answer:
Bishop wanted to take in Mere Gringoire because she was unable to pay the rent of her house.

(b) Define the word ‘distress’?
Answer:
It means that Mere Gringoire was under extreme difficulty and anxiety.

(c) Persome would be distressed on Mere Gringoire’s being taken in because.
Answer:
Persome felt that Mere Gringoire was taking undue advantage of the Bishop.

Question 4.
“You have your soul to lose, my son; it is of more value than my heart. ”

(a) Why do you think the convict will lose his soul?
Answer:
The bishop tells the convict that he has his soul to lose if he commits a crime.

(b) What do these lines show about the speaker?
Answer:
These lines show that he is sympathetic and loving.

(c) How did the speaker transform the listener?
Answer:
The speaker transformed the listener through kindness and love.

Question 5.
“They chained me up like a wild animal, they lashed me like a hound. 1 fed on filth, I was covered, with vermin, I slept on boards, and I complained. Then they lashed me again. ”

(a) Where was the speaker at the time? For how long was he there?
Answer:
The speaker was in prison hulks at this time. He was there for ten years.

(b) To whom do the terms “they” and “me” refer?
Answer:
The term “they” refer to the prison authorities and “me” refers to the convict.

(c) Explain the phrase ‘lashed me like a hound’?
Answer:
The convict is telling the bishop that he was treated like a dog. he was secured tightly on a leash.

Question 6.
“And so my brother is to be kept out of his bed, and go without his supper because you told him she was feeling poorly. ”

(a) Who is feeling poorly?
Answer:
Marie’s mother had been feeling poorly.

(b) Why has the brother gone to see the person who is feeling poorly?
Answer:
The brother went to see the person who is feeling poorly to pray with her.

(c) What does the speaker mean when he says kept out of bed’?
Answer:
The speaker means that his brother, the bishop, is away from his warm home and bed.

Question 7.
“You are like a child. / can’t trust you out of my sight. No sooner is my back turned than you get that little minx Marie to sell the silver salt-cellars. ”

(a) Why did the listener get Marie to sell the silver salt-cellars?
Answer:
The listener got Marie to sell the silver salt-cellars as Mere Gringoire needed money to pay her rent.

(b) What does the word minx mean?
Answer:
Minx refers to a cunning young woman.

(c) She did not want the salt-cellars sold as
Answer:
They had been in their family for years.

Question 8.
“That was when I was a man. Now I’m not a man; now I’m a number; number 15729, and I’ve lived in Hell for ten years. ”

(a) What has changed the speaker?
Answer:
The harsh treatment in prison has changed the speaker.

(b) What does ‘That was when I was a man’ refer to?
Answer:
The speaker says he used to be a man but now he has changed into a beast.

(c) What idea does the play highlight?
Answer:
The play highlights how love and kindness can change a man rather than violence.

Question 9.
“You are going to try to convert me. ”

(a) What is the speaker’s tone?
Answer:
The speaker seems to be suspicious of the bishop.

(b) Do you think the speaker is against religion? Why?
Answer:
Yes. I think he is against religion because he is suspicious of the bishop and he admits that he hates the church.

(c) What do you mean by the word ‘convert’ in this context?
Answer:
The word ‘covert’ in this context means changing one’s religion or belief.

Question 10.
“Monseigneur, I’m glad I didn’t get away with them; curse me, I am. I’m glad. ”

(a) Why is he glad he did not get away with them?
Answer:
He is glad that he did not get away with them as he has been transformed by the Bishop’s goodness.

(b) What does he ask the Bishop for before he leaves?
Answer:
He asked the Bishop to bless him before he leaves.

(c) What do you think is the speaker going through? Can you name some of the emotions associated with it?
Answer:
The speaker is remorseful and he regrets taking the bishop’s candlesticks, apologetic, repentant, contrite.

Check the below Online Education NCERT MCQ Questions for Class 9 Geography Chapter 3 Extra Questions and Answers Drainage Pdf free download. https://ncertmcq.com/extra-questions-for-class-9-social-science/

Online Education for Drainage Class 9 Extra Questions Geography Chapter 3

Class 9 Geography Chapter 3 Extra Questions And Answers Question 1.
Where term the Brahmaputra originates?
Answer:
From Tibet.

Drainage Class 9 Extra Questions Question 2.
In which direction does the Brahmaputra flow?
Answer:
The Brahmaputra flows in eastward direction parallel to the Himalayas.

Extra Questions For Class 9 Geography Chapter 3 Drainage Question 3.
Whaf does the Brahmaputra do in Namcha Barwa ?
Answer:
The Brahmaputra reaching Namcha Barwa takes a U-tum and enters India in Arunachal Pradesh.

Class 9 Geography Chapter 3 Extra Questions Question 4.
What is a river basin?
Answer:
A river basin is meant by the area which is drained by a single river system. This a also known as drainage basin.

Extra Questions For Class 9 Geography Chapter 3 Question 5.
Name two saltwater lakes on the eastern coast of India.
Answer:

1. The Chilka – in Orissa.
2. The Pulicat – in Tamil Nadu.

Drainage Extra Questions Question 6.
In which states does the Brahmaputra flow in India?
Answer:

• Arunachal Pradesh,
• Assam.

Class 9 Drainage Extra Questions Question 7.
By which name Brahmaputra is known in Tibet?
Answer:
Tsangpo.

Ncert Class 9 Geography Chapter 3 Extra Questions Question 8.
Name the city located on the water divide between the Indus and Ganga.
Answer:
Ambatal.

Class 9 Geography Chapter 3 Short Questions And Answers Question 9.
By which name the mainstream of Ganga is known in Bangladesh?
Answer:
Padma.

Class 9 Geo Ch 3 Extra Questions Question 10.
When is the Ganga known as Tainuna?
Answer:
In Bangladesh where the Brahmaputra joins the Ganga, it is known as Jamuna.

Drainage System Class 11 Extra Questions Question 11.
Where does the Jhelum fall into the Indus?
Answer:
A little over Mithankot.

Extra Questions Of Drainage Class 9 Question 12.
What is meant by the dendritic pattern of streams?
Answer:
The dendritic pattern of streams indicates the streams resembling like the branches of a tree.

Class 9 Geography Chapter 3 Questions And Answers Question 13.
What is meant by the trellis?
Answer:
Trellis indicates the situation where the tributaries join the mainstream at the right angles.

Class 9 Geography Ch 3 Extra Questions Question 14.
What is meant by a braided stream?
Answer:
The braided stream is channel of a stream that has large island within it.

Geography Class 9 Chapter 3 Extra Questions Question 15.
What is meant by island drainage?
Answer:
Island drainage refers to die rivers not reaching a ocean. Instead, they fall into a sea or lake within the land.

Class 9 Chapter 3 Geography Extra Questions Question 16.
From which glacier does the Yamuna originate?
Answer:
Yamunotri.

Geography Chapter 3 Class 9 Questions And Answers Question 17.
Name the largest peninsular river of India.
Answer:
Godavari.

Chapter 3 Geography Class 9 Extra Questions Question 18.
Name the tributaries of die river Krishana.
Answer:

• The Tungabhadra,
• The Koyna,
• The Ghatprabha,
• The Musi,
• The Bhima.

Ch 3 Drainage Extra Questions And Answers Question 19.
Name the states which fall, into the drainage basin of the Narmada
Answer:

• Maharashtra,
• Karnataka,
• Andhra Pradesh.

Geography Chapter 3 Class 9 Extra Questions Question 20.
Which river originates from the Brahmagir range of the Western Ghats?
Answer:
The Kaveri.

Question 21.
Why are the peninsular rivers seasonal?
Answer:
They are seasonal because their flow depends on die rainfall.

Question 22.
Point out the prominent features of the Ganga-Brahmaputra delta.
Answer:

• It is the largest delta of die world.
• It is one of the most fertile areas of the world.
• It is a triangular-shaped area.
• It is a well-watered area.
• The lower part of this delta is marshy.
• Mangroves are found only in this place of the whole India.

Question 23.
How Would you differentiate between a glacier and a river?
Answer:

The Glacier	The River
1. Glaciers are in the solid form.	1. Rivers are in liquid form.
2. Glaciers look like a mountain of ice.	2. Rivers may be seen flowing.
3. Glaciers move very slowly.	3. Rivers move with a greater speed.
4. The movement of a glacier is not discernible.	4. The movement of a river is easily discernible.

Question 24.
How the lakes are formed?
Answer:

• Lakes are formed in the mountainous area when the glaciers block the valleys and large amount of water is collected in that place.
• The violent movements of the earth, like the earthquakes, also create lakes when the depressions formed on the crust of the earth are filled with rainwater.
• Human beings also form lakes, for various purposes.

Question 25.
What is meant by the Indus water treaty?
Answer:
Indus water treaty is a treaty between India and Pakistan. This treaty is about the- sharing of the waters of the Indus system. According to this treaty, India can use only 20% of the total of the water carried by the Indus river system.

Question 26.
Name the states through whicn the river Mahanadi flows.
Answer:
The river Mahanadi flows through three states of India:

1. It originates in Chattisgarh
2. If falls in the Bay of, Bengal in Orissa.
3. Hence it flows through Chattisgarh and Orissa Only.

Question 27.
Why are the rivers considered the lifelines of human civilisation?
Answer:
Rivers are undoubtedly the lifelines of the human civilisation. All the early: civilisations whether in India, Mesopotamia, Egypt or in China, flourished in the river valleys. The Harappan culture of India flourished in the Indus valley. The Egyptian civilization flourished in the Nile valley and the Mesopotamian in the valleys of the Tigris and Euphrates.

It is a well-known fact that the rivers provide us water Without water, one can not imagine life. Hence it is a very natural tendency to stay and live by the sides of the river and their nearby areas. So that water heed for drinking and cultivation etc could be fulfilled easily.

Question 28.
What do you mean by the drainage?
Answer:
Drainage is an outcome of the evolutionary process of the broad relief features of the country. It is meant by the river system of an area.

Question 29.
Answer the following questions:
(i) Three major rivers Originating beyond the Himalayas.
(ii) The source area of these rivers.
(iii) Point out the feature formed by these rivers.
Answer:
(i) Three major rivers originating beyond tire Himalayas are:

• The Indus,
• The Satluj,
• The Brahmputra.

(ii) The source of the above rivers is Mansarovar near the Kailash.
(iii) Gorges, Canyons, U-shaped valleys.

Question 30.
Write a few lines on the Ganga.
Answer:
The Ganga river originates from the Gangotri glacier in the Himalayas. After crossing through India and Bangladesh, it falls in the Bay of Bengal. It is of nearly 2500 km. length. The main tribu taries of Ganga are the Yamuna, Gomut, Ghagra, gandak and Kosi. The southern tributaries of the Ganga are Son. Chambel, Betwa and Kosi.

Question 31.
Which are the important peninsular rivers of India?
Or
Give a brief account of the different peninsular rivers of India.
Answer:
The Narmada: If rises from Amarkantak in Madhya Pradesh. It flows west-southward in a trough for a distance about 1300 km. The Narmada gorge in the marble rocks of Madhya Pradesh is very famous for its beauty.

The Tapi: It rises from the Betul district of Madhya Pradesh. It flows in a trough parallel to the Narmada. However, it is smaller in size than that of the Narmada: The Godavari: It is also known as the Dakshin Ganga and Vridha Ganga.

It is the largest among the peninsular rivers of India. It rises in Nashik district of Maharashtra. Its length is about 15000 km. It drains into the Bay of Bengal.

The Mahanadi: It rises ill Chattisgarh and flows through Orissa and reaches the Bay of Bengal.

The Krishna: It rises from the spring near Mahabaleshwar. If flows-for nearly about 1400 km. Its drainage basin is shared by Maharashtra, Karnataka and Andhra Pradesh.

The Kaveri: It rises in the Brahmagir ranges of the Western Ghats. If flows over 800 km. Near the Kaveripatnam, it reaches the Bay of Bengal.

Question 32.
What is the reason of the water pollution? How the pollution level can be reduced?
Or
Suggest some measures to reduce the pollution of water.
Answer:
Water pollution indicates that the water is not pure and safe for the health. Today, many factors are causing the water pollution; It is very dangerous for health as well as for tire environment. The large number of the dead fishes found in Yamuna at Agra proved it.

Factories, especially the chemical industries, paper mills, sugar mills, tanneries etc are causing the water to be polluted. The disposal of sewage of urban areas into the rivers also lead to this pollution. As for example, the Najafgarh Nala in Delhi may be taken.

Question 33.
What is meant by a lake? Introduce some of the important lakes of India.
Or
How are the lakes useful for us?
Or
Point out the importance of lakes.
Answer:
A large low lying depression in the earth filled with water is called a lake. A lake may be natural or artificial that is, human-made Lakes may be in the hill areas as well as in the plain.

Importance of the Lakes

• Lakes help us in drainage.
• These are the beauties attracting the tourists.
• These are important for nature and protecting the natural beauty.
• Lakes are also important for the economy of a country.
• They are used for boating and fishing.
• They provide the opportunities for recreation.

Reduction in water (low due to ever-increasing abstraction of water for irrigation from the river Ganga through canals.

Question 34.
Point out the achievements of the Ganga Action Plan.
Answer:

• Mainly 260 schemes have been launched in the Ganga Action Plan.
• Nearly 45 of them have been completed with positive results.
• Trees have been planted in badly, eroded portions to check the dams repuned in the upper reaches of the river.
• The interception and diversion of several major drains carrying savage and the industrial wastes to the river Ganga have been completed in several cities like Varanasi Kanpur and Patna.
• It has reduced the pollution level substantially.
• Turtles and the Gangetic dolphins which had been disappeared for several years reappeared in Varanasi and the other places.,
• All of the above points indicate the recovery of the health of the Ganga.

Hence though the Ganga Action Plan has miles to go it have no doubt achieved several landmark achievements.

Question 35.
Give an account of the drainage of the surface water of India.
Answer:

• Two-third of the total surface water of India drains into the Bay of Bengal.
• About 20% of the surface water drains into the Arabian Sea.
• A little less than 10% drain to form part of the inland drainage of Rajasthan desert and Aksai Chain.
• Nearly 1% drains to the Andaman Sea through the tributaries of the Irrawaddy in Myanmar.

Question 36.
Write a detailed note on the Indus River System.
Answer:
The river Indus rises in Tibet, near Lake Mansarovar. Flowing west, it enters India in the Ladakh district of Jammu and Kashmir through a picturesque gorge. Several tributaries, the Zaskar, the Shyok and the Huzana, join it in this region. It flows through Baltistan and Gilgit and emerges from the mountains at Attack.

The famous five rivers of Punjab-the Satluj; the Beas, the Ravi, the Chenab and the Jhelum-enter.the Indus is a little above Mithankol in Pakistan. Beyond this, the Indus flows southwards eventually reaching the Arabian Sea, east of Karachi. The total length of the river is about 2900Jem, ranking it amongst the longest rivers of the world. A little over a third of the Indus basin is located in India in the states of Jammu and Kashmir, Himachal Pradesh and the Punjab and the rest is in Pakistan.

Question 37.
What do you know about the Brahmaputra rivers System?
Answer:
The Brahmaputra rises in Tibet east of Mansarovar lake very close to the sources of the Indus and the Satluj. In Tibet, it is called the Tscmgpo. It is slightly longer than the Indus, and most of its course lies outside India. It flows eastwards parallel to the Himalayas to its south.

On reaching the mountain peak the Namcha Barwa (7757 m), it takes a ‘U’ turn and enters India in Arunachal Pradesh through a gorge. Here it is called the Dihang and it is joined by the Dibang, the Lohit the Kenula and many other tributaries to form the Brahmaputra in Assam.

In Tibet the river carries a smaller volume of water and less silt as if is a comparatively dry area. In India, it passes through a region, which receives a huge amount of rainfall. As a result, the river carries a large volume of water and considerable amount of silt. The Brahmaputra has a braided channel in its entire length in Assam, with many riverine islands.

Objective Type Questions

1. Put (✓) before the correct sentences and (✗) before the incorrect sentences.

(i) Of the 260 schemes of the Ganga Action plan, 45 have been completed with positive result
Answer:
(✓)

(ii) The Kaveri raises from Amarkantak,
Answer:
(✗)

(iii) India has comparatively a few natural lakes.
Answer:
(✓)

(iv) Over two-thirds of the surface water of India drains into the Bay of Bengal.
Answer:
(✓)

(v) Aksai Chin is in Uttaranchal.
Answer:
(✗)

(vi) The Krishana is famous as the Vridha Ganga.
Answer:
(✗)

(vii) The Chilka lake is a large lagoon.
Answer:
(✓)

(viii) The rising pollution of Ganga became a cause of concern during 1970 and 1980s.
Answer:
(✓).

2. Fill in the blanks with suitable words.

(i) The Mahanadi rises from ………………… .
Answer:
Chattisgarh

(ii) The Krisha flows for about ……………….. Km.
Answer:
1400

(iii) Where the sweet water mixes with the saltwater of ocean is known as ………………… .
Answer:
estuaries

(iv) The ………………… basin is shared by Kerala, Karnataka and Tamilnadu.
Answer:
Kaveri,

(v) Aksai chin is in ………………… .
Answer:
Jammu and Kashmir.

3. Match the following two lists.

List I	List II
(i) Bhima	Farakka
(ii) Godavari	Krishna,
(iii) Rajasthan	Nashik
(iv) Kaveri	800 Km.
(v) Loktak Inland	drainage
(vi) Ganga	Manipur.

Answer:

List I	List II
(i) Bhima	Krishna
(ii) Godavari	Nashik
(iii) Rajasthan Inland	drainage
(iv) Kaveri	800 Km.
(v) Loktak	Manipur
(vi) Ganga	Farakka.

4. Choose the right answer from the four alternatives given below:

(i) The river Indus rise from the following:
(a) Mansarovar
(b) Gangotri
(c) Nasik
(d) Mahabaleswar.
Answer:
(a) Mansarovar

(ii) The Ganga is also known as:
(a) Krishana
(b) Bhagirathi
(c) Narmada
(d) Kaveri.
Answer:
(b) Bhagirathi

(iii) The following is a peninsular rivers
(a) The Ganga
(b) The Tapi
(c) The Indus
(d) TheBrahmpaputra
Answer:
(b) The Tapi

(iv) The following is the largest peninsular river:
(a) Mahanadi
(b) Krishna
(c) Godawari
(d) Narmada.
Answer:
(c) Godawari

(v) The following is the range from where the river Tapi rises:
(a) Satpura
(b) Aravalli
(c) Vindhya
(d) None of these.
Answer:
(a) Satpura.

Extra Questions for Class 9 Social Science