MCQ Questions for Class 11 Physics Chapter 11 Thermal Properties of Matter with Answers

Check the below Online Education NCERT MCQ Questions for Class 11 Physics Chapter 10 Mechanical Properties of Fluids with Answers Pdf free download. MCQ Questions for Class 11 Physics with Answers were prepared based on the latest exam pattern. We have provided Mechanical Properties of Fluids Class 11 Physics MCQs Questions with Answers to help students understand the concept very well.

Class 9 Physics Chapter 10 MCQ With Answers

Physics Class 9 Chapter 10 MCQs On Mechanical Properties of Fluids

Mechanical Properties Of Fluids Class 11 MCQ Question 1.
A number of small drops of mercury coalesce adiabatically to form a single drop. The temperature of drop
(a) Increases
(b) Is infinite
(c) Remains unchanged
(d) May decrease or increase depending upon size

Answer

Answer: (d) May decrease or increase depending upon size


Mechanical Properties Of Fluids MCQ Question 2.
Surface tension of a soap solution is 1.9 × 10-2N/m. work done in blowing a bubble of 2.0 cm diameter will be
(a) 7.6 × 10-6 p J
(b) 15.2 × 10-6 p J
(c) 1.9 × 10-6 p J
(d) 1 × 10-4 p J

Answer

Answer: (b) 15.2 × 10-6 p J


Mechanical Properties Of Fluids MCQ Pdf Question 3.
Plants get water through the roots because of
(a) Capillarity
(b) Viscosity
(c) Gravity
(d) Elasticity

Answer

Answer: (a) Capillarity


MCQ On Mechanical Properties Of Fluids Class 11 Question 4.
Choose the wrong statement from the following.
(a) Small droplets of a liquid are spherical due to surface tension
(b) Oil rises through the wick due to capillarity
(c) In drinking the cold drinks through a straw, we use the phenomenon of capillarity
(d) Gum is used to stick two surfaces. In this process we use the property of Adhesion

Answer

Answer: (c) In drinking the cold drinks through a straw, we use the phenomenon of capillarity


Class 11 Physics Chapter 10 MCQ Question 5.
The height of a liquid in a fine capillary tube
(a) Increases with an increase in the density of a liquid
(b) Decreases with a decrease in the diameter of the tube
(c) Decreases with an increase in the surface tension
(d) Increases as the effective value of acceleration due to gravity is decreased

Answer

Answer: (d) Increases as the effective value of acceleration due to gravity is decreased


MCQs On Mechanical Properties Of Fluids Question 6.
At critical temperature, the surface tension of a liquid
(a) Is zero
(b) Is infinity
(c) Is the same as that at any other temperature
(d) Can not be determined

Answer

Answer: (a) Is zero


Mechanical Properties Of Fluids MCQs Question 7.
A capillary tube when immersed vertically in a liquid records a rise of 3 cm. if the tube is immersed in the liquid at an angle of 60° with the vertical, then length of the liquid column along the tube will be
(a) 2 cm
(b) 3 cm
(c) 6 cm
(d) 9 cm

Answer

Answer: (c) 6 cm


MCQ On Mechanical Properties Of Fluids Class 12 Question 8.
When the angle of contact between a solid and a liquid is 90°, then
(a) Cohesive force > Adhesive force
(b) Cohesive force < Adhesive force
(c) Cohesive force = Adhesive force
(d) Cohesive force >> Adhesive force

Answer

Answer: (c) Cohesive force = Adhesive force


Mechanical Properties Of Fluids Class 12 MCQ Pdf Question 9.
Water rises up to a height of 5 cm in a capillary tube of radius 2 mm. what is the radius of the radius of the capillary tube if the water rises up to a height of 10 cm in another capillary?
(a) 4 mm
(b) 1 mm
(c) 3 mm
(d) 1 cm

Answer

Answer: (b) 1 mm


Mechanical Properties Of Fluid MCQ Question 10.
If the surface of a liquid is plane, then the angle of contact of the liquid with the walls of container is
(a) Acute angle
(b) Obtuse angle
(c) 90°
(d) 0°

Answer

Answer: (d) 0°


Mechanical Properties Of Fluids MCQ With Answers Pdf Question 11.
Two soap bubbles have radii in the ratio of 4 : 3. What is the ratio of work done to below these bubbles?
(a) 4 : 3
(b) 16 : 9
(c) 09 : 16
(d) 3 : 4

Answer

Answer: (b) 16 : 9


MCQ Questions On Mechanical Properties Of Fluids Class 11 Question 12.
The height of water in a capillary tube of radius 2 cm is 4 cm. what should be the radius of capillary, if the water rises to 8 cm in tube?
(a) 1 cm
(b) 0.1 cm
(c) 2 cm
(d) 4 cm

Answer

Answer: (a) 1 cm


Class 11 Physics Mechanical Properties Of Fluids MCQ Question 13.
Water rises up to a height of 4 cm, in a capillary tube immersed vertically in water. What will be the length of water column in the capillary tube, if the tube is immersed in water, at an angle of 60° with the vertical?
(a) 4 cm
(b) 6 cm
(c) 8 cm
(d) 2 cm

Answer

Answer: (c) 8 cm


MCQ Questions For Class 11 Physics Chapter 10 Question 14.
The surface of water in contact with glass wall is
(a) Plane
(b) concave
(c) convex
(d) Both b and c

Answer

Answer: (b) concave


Mechanical Properties Of Fluids MCQ Pdf Download Question 15.
Pressure inside two soap bubbles is 1.01 and 1.02 atmospheres. ratio between their volume is
(a) 102 : 101
(b) (102)3 : (101)3
(c) 8 : 1
(d) 2 : 1

Answer

Answer: (c) 8 : 1


Mechanical Properties Of Fluids Class 12 MCQ Question 16.
One end of a towel dips into a bucket full of water and other end hangs over the bucket. It is found that after some time the towel becomes fully wet. It happens
(a) Because viscosity of eater is high
(b) Because of the capillary action of cotton threads
(c) Because of gravitational force
(d) Because of evaporation of water.

Answer

Answer: (b) Because of the capillary action of cotton threads


Mechanical Properties Of Fluids Class 11 Questions And Answers Pdf Question 17.
If the surface of a liquid is plane, then the angle of contact of the liquid with the walls of container is
(a) Acute angle
(b) Obtuse angle
(c) 90°
(d) 0°

Answer

Answer: (d) 0°


Mechanical Properties Of Fluids Class 11 Important Questions Pdf Question 18.
Water rises up to a height h, in a capillary tube of radius r. the mass of the water lifted in the capillary tube is M. if the radius of the capillary tube is doubled, the mass of water that will rise in the capillary tube will be
(a) M
(b) 2M
(c) M/2
(d) 4M

Answer

Answer: (b) 2M


Question 19.
5 g of water rises in the bore of capillary tube when it is dipped in water. If the radius of bore capillary tube is doubled, the mass of water that rises in the capillary tube above the outside water level is
(a) 1.5 g
(b) 10 g
(c) 5 g
(d) 15 g

Answer

Answer: (b) 10 g


Question 20.
The height of a liquid in a fine capillary tube
(a) Increases with an increase in the density of a liquid
(b) Decreases with a decrease in the diameter of the tube
(c) Decreases with an increase in the surface tension
(d) Increases as the effective value of acceleration due to gravity is decreased

Answer

Answer: (d) Increases as the effective value of acceleration due to gravity is decreased


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