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प्रश्न
What is meant by atmospheric pressure?
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उत्तर
The weight of air above a given area on the earth’s surface is called atmospheric pressure or air pressure.
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संबंधित प्रश्न
The atmospheric pressure is nearly 105 Pa.
Write the numerical value of the atmospheric pressure on the earth surface in pascal.
How is the barometric height of a simple barometer affected if A drop of liquid is inserted inside the tube?
State two uses of a barometer.
Convert 1 mm of Hg into pascal. Take density of Hg = 13.6 x 103 kg m-3 and g = 9.8 m s-2 .
Give reasons for the following:
Temperature and pressure are inversely related to one another.
The radius of the press plunger and pump plunger are in ratio of 50 : 4. If an effort of 20 kgf acts on the pump plunger, calculate the maximum effort which the press plunger can over come.
State two factors which affect the atmospheric pressure as we go up.
What is an aneroid barometer?
Draw a neat and labeled diagram to explain its construction and working.
Humans are sensitive even to a small variations in pressure.
