In the given figure what is the pressure difference between points $A$ and $B$ .

Important Questions on Surface Tension

EASY

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 11>Chapter 14 - Surface Tension>MODEL QUESTIONS>Q 11

Which of the following graphs may represent the relation between capillary rise $h$ and radius of the capillary tube.

Question Image

EASY

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 11>Chapter 14 - Surface Tension>MODEL QUESTIONS>Q 12

When some wax is rubbed on a cloth, it becomes waterproof. Explain.

EASY

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 11>Chapter 14 - Surface Tension>MODEL QUESTIONS>Q 13

The contact angle between pure water and pure silver is

90 °

. If a capillary tube made of silver is dipped at one end in pure water, will the water rise in the capillary?

EASY

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 11>Chapter 14 - Surface Tension>MODEL QUESTIONS>Q 14

When a glass capillary tube is dipped at one end in water, the water rises in the tube. The gravitational potential energy is thus increased. Is it a violation of conservation of energy?

MEDIUM

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 11>Chapter 14 - Surface Tension>MODEL QUESTIONS>Q 15

If a mosquito is dipped into water and released, it is not able to fly till it is dry again. Explain

MEDIUM

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 11>Chapter 14 - Surface Tension>MODEL QUESTIONS>Q 16

When the size of a soap bubble is increased by pushing more air in it, the surface area increases. Does it mean that the average separation between the surface molecules is increased?

MEDIUM

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 11>Chapter 14 - Surface Tension>MODEL QUESTIONS>Q 1

A soap bubble of radius