Relation between Depth and Pressure

Q.

The fraction of a floating object of volume $V_0$ and density $d_0$ above the surface of a liquid of density d will be

1. 

2. 

3. 

4. 

Q.

The atmospheric pressure at sea level is greater than the pressure at higher altitudes.

1. True

2. False

Q.

The pressures at all points in a liquid at the same horizontal plane are equal.

1. True
2. False

Q. What is the pressure on swimmer 10m bellow the surface of alake

Q. The pressure at a point in the liquid acts only in downward direction.

1. True
2. False

Q.

Pressure in a liquid increases with increase in ___.

1. depth

2. volume

3. base area

4. mass

Q.

It is given that both liquid A and liquid B exert the same amount of pressure. The density of liquid A is twice the density of liquid B. The height of the column of liquid B is 10 cm. Then what would be the height of the column of liquid A?(Use the formula for Pressure(P) as P = $\rho gh$; ${}^{\prime }{\rho }^{\prime }$ is the density of the liquid, 'g' -acceleration due to gravity, 'h'- height of the liquid column)

1. 15 cm

2. 10 cm

3. 5 cm

4. 20 cm

Q.

Statement 1: The liquid pressure increases as the depth increases.

Statement 2: The liquid at lower depths has to support all of the water above it.

1. Only statement 1 is correct.

2. Statement 2 is the correct reason for statement 1.

3. Statement 1 is the correct reason for statement 2.

4. Only statement 2 is correct.

Q.

Then the volume of water displaced by the completely immersed body is ___ the volume of the body.

1. does not depend upon

2. equal to

3. less than

4. greater than

Q. Two vessels of different sizes are filled with the same liquid. The depth from the liquid surface is the same for A and B. The pressure at point A is the pressure at B point.

1. greater than
2. lesser than
3. equal to

Q. A water tank has four taps fixed at points A, B, C and D as shown in the figure. The water will flow out at the same pressure from taps at position:

1. A and B
2. B and C
3. A and C
4. C and D

Q. In the given diagram, points A and B are at the same distance from the free surface and points A and C are at the same distance from the bottom surface. Which of the following relation(s) is/are correct?
($P_A,P_B\text{and}{P}_C$ are the pressure values at points A, B and C)

1. $P_A=P_B$
2. $P_B=P_C$
3. $P_A=P_C$
4. $P_C>P_A=P_B$

Q.

The standard depth for recreational sea-diving has been fixed at 39 metres. For diving further below, we require special cladding and expertise. Why are these limits placed?

1. At higher depth there is high turbulence/disturbance.

2. At higher depth the pressure is too low for humans to withstand.

3. At higher depth the pressure is too high for humans to withstand.

4. At higher depth the temperature is unbearable for humans.

Q.

Amount of pressure of liquid increases with depth. State whether the statement is true or false

1. Increase

2. Decrease

Q.

A compressible sponge is taken from 1 metre depth to 2 metre depth inside a swimming pool. Then its volume _______.

1. depends on the thickness of the sponge

2. increases

3. decreses

4. remains constant

Q.

The pressure at the bottom of a tank containing a liquid does not depend on ___.

1. the area of the bottom surface

2. the acceleration due to gravity

3. the height of the liquid column

4. the density of the liquid

Q. Select the height upto which the water level could rise after opening the valve.

1. 
2. 
3. 

Q.

The fraction of a floating object of volume $V_0$ and density $d_0$ above the surface of a liquid of density d will be

1. 

2. 

3. 

4. 

Q.

Pressure at a point inside a liquid does not depend on ___.

1. the depth of the point below the surface of the liquid

2. the volume of the liquid

3. the weight of the overlying liquid

4. the mass of the liquid

Q.

Two identical cubes A and B are placed in a tank containing a liquid as shown below. Choose the correct statement regarding pressures exerted on them.

1. B

2. None of these

3. A

4. Both Same