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प्रश्न
What is meant by atmospheric pressure?
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उत्तर
The pressure exerted by the atmospheric gases on its surroundings and on the surface of the earth is called atmospheric pressure.
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संबंधित प्रश्न
Explain the following :
A balloon collapses when air is removed from it.
Illustrate with the help of a labelled diagram of a simple barometer that the atmospheric pressure at a place is 76 cm of Hg.
What do the following indicate in a barometer regarding weather : gradual fall in the mercury level
What do the following indicate in a barometer regarding weather : Gradual rise in the mercury level?
The normal atmospheric pressure is :
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?
What is meant by atmospheric pressure?
The atmosphere is a layer of gases surrounding the planet.
The human lung is well adapted to breathe at a pressure of ______ k Pa.
