Variation of Atmospheric Pressure with Altitude.

Q. Atmospheric pressure with an increase in altitude.

1. increases
2. decreases
3. remains unchanged

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?

1. 20cm

2. 5cm

3. 10cm

4. None of the above

Q.

In high air pressure, the molecules are

1. hot and moving rapidly

2. warm and moving slow

3. close together and moving slowly

4. far apart and moving fast

Q.

If the pressure of a liquid column at its bottom is 1000 Pa and height of the liquid is 20 cm, the density of the liquid is (keeping in mind the gravitational pull of earth)

1. 50 g cm^-3

2. 100 g cm^-3

3. 0.2 g cm^-3

4. .5 g cm^-3

Q.

Choose the correct option(s)
When the temperature of air in over a region increases:

1. Density of air decreases

2. Density of air increases

3. Atmospheric pressure reduces

4. Atmospheric pressure increases

Q.

Amount of pressure of liquid increases with

1. volume

2. base area

3. depth

4. mass

Q.

In high-pressure air, the molecules are _______ than in low-pressure air.

1. far away

2. closer together

Q.

What is the pressure measured relative to atmospheric pressure and which is less than atmospheric pressure?

1. Vacuum Pressure

2. Gauge Pressure

3. Absolute Pressure

Q.

If the density of a liquid is 20 g cm^-3, height is 4 cm and the gravitational field strength is 10 N kg^-1, the pressure at the bottom of the liquid is

1. 8 Pascal

2. 50 Pascal

3. 8000 Pascal

4. 2 Pascal

Q. For accurate measurement , a vernier scale is provided in the Fortin barometer.

1. True
2. False