Effect of Gravity on Fluid Pressure and Pressure Due to a Fluid Column NEET Questions

Physics - Properties of Solids and Liquids

Effect of Gravity on Fluid Pressure and Pressure Due to a Fluid Column MCQ Questions


7.
If pressure were not equal at different parts of a horizontal plane in a static fluid, what would happen?
A.
Temperature would rise
B.
The fluid would flow (it would not remain static)
C.
Density would change
D.
The fluid would cool down
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ANSWER :
B. The fluid would flow (it would not remain static)
8.
Atmospheric pressure at sea level is approximately:
A.
1.013 × 10⁴ Pa
B.
1.013 × 10⁵ Pa
C.
1.013 × 10³ Pa
D.
1.013 × 10⁶ Pa
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ANSWER :
B. 1.013 × 10⁵ Pa
9.
In a mercury barometer, the space above the mercury column in the closed tube contains:
A.
Air at atmospheric pressure
B.
Water vapour
C.
Vacuum with P = Pa
D.
Mercury vapour at negligible pressure (≈ zero)
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ANSWER :
D. Mercury vapour at negligible pressure (≈ zero)
10.
The relation used in a mercury barometer to find atmospheric pressure is:
A.
Pa = ρg/h
B.
Pa = ρgh
C.
Pa = ρ + gh
D.
Pa = mg/A
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ANSWER :
B. Pa = ρgh
11.
The height of the mercury column in a barometer at sea level is approximately:
A.
76 cm
B.
7.6 m
C.
76 mm
D.
760 cm
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ANSWER :
A. 76 cm
12.
1 torr (unit of pressure) is equal to:
A.
13.3 Pa
B.
1330 Pa
C.
1.33 Pa
D.
133 Pa
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ANSWER :
D. 133 Pa