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प्रश्न
How does the atmospheric pressure change with altitude?
उत्तर
Pressure at sea level is taken as 76 cm of MERCURY column which is one atmosphere. But his pressure varies with altitude as the density of air decreases as we rise up and the air becomes rarer. For every 105 m rise in height, pressure decreases by 1 cm of the mercury column.
The graph shows the approximate variation of pressure with altitude.
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संबंधित प्रश्न
Distinguish between the following:
Isobars and Isotherms
Name the instrument used to measure atmospheric pressure.
Why do not we feel uneasy even under enormous pressure of the atmosphere above as?
Describe an experiment to demonstrate that air exerts pressure.
What is an aneroid barometer?
Draw a neat and labeled diagram to explain its construction and working.
What is meant by atmospheric pressure?
Define one atmosphere.
What does low pressure and high pressure lead to?
