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प्रश्न
Why is the barometric height used as unit to express the atmospheric pressure?
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उत्तर
It is the atmospheric pressure acting on the surface of the mercury in the trough that supports the vertical mercury column. Hence, barometric height is used as unit to express the atmospheric pressure.
संबंधित प्रश्न
What do you understand by atmospheric pressure?
Name the physical quantity which is expressed in the unit 'atm'. State its value in pascal.
Describe an experiment to demonstrate that air exerts pressure.
Mention two demerits of a simple barometer and state how they are removed in a Fortin barometer .
What is an aneroid barometer? Draw a neat and labelled diagram to explain its construction and working.
Why does a fountain pen leak at high altitude?
What is meant by the term ‘Atmospheric Pressure’?
Briefly explain the three chief types of winds.
What does a falling barometer indicate?
Humans are sensitive even to a small variations in pressure.
