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प्रश्न
What do you understand by atmospheric pressure?
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उत्तर
The thrust exerted per unit area of the earth surface due to column of air, is called the atmospheric pressure on the earth surface.
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संबंधित प्रश्न
Give reason for the following :
Two holes are made in a sealed oil tin to take out oil from it.
Write the numerical value of the atmospheric pressure on the surface of earth in pascal.
State two uses of a barometer.
Give two reasons why water is not a suitable barometric liquid.
The atmospheric pressure at earth's surface is P1 and inside mine is P2. They are related as :
Atmospheric pressure at sea level is 76 cm of mercury. Calculate the vertical height of the air column exerting the above pressure. Assume the density of air 1.29 kgm−3 and that of mercury is 13600 kgm−3. Why the height calculated by you is far less than the actual height of the atmosphere?
Select the correct option.
The atmospheric pressure on the earth’s surface is approximately
What does a falling barometer indicate?
Give reasons:
Why artificial pressure creates in Aircraft?
Figure shows a child blowing air with a straw near the opening of another straw which has its other end in a soft drink bottle. It was observed that the level of the soft drink in the straw rises up as soon as air is blown over its open end. Which one of the following best explains the reason for rise in level of the drink?
