Convert 1 mm of Hg into Pascal. Take density of Hg = 13.6 X 10^3 kg m^-3 and
g = 9.8 m/s^2
133.28 Pa
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10
Why does a fountain pen leak at a high altitude?
The pressure inside the pen is more than the outside atmospheric pressure
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5
The S.I. unit of pressure is _______________
Pascal
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10
How is this barometer different from the other two?
It does not contain any liquid.
It is portable.
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10
The normal atmospheric pressure is __________
76 cm of Hg
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10
Identify the picture
Hydraulic brakes
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5
Which instrument is used to measure atmospheric pressure?
Barometer
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20
At sea level, the atmospheric pressure is 1.04 X 10^5 Pa. Assuming g = 10 m/s^2 and density of air to be uniform and equal to 1.3 kg m^-3. Find the height of the atmosphere.
