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प्रश्न
How is the reading of a barometer affected when it is taken to (i) a mine, and (ii) a hill?
उत्तर
(i) In a mine, reading of a barometer increases.
(ii) On hills, reading of barometer decreases.
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संबंधित प्रश्न
The atmospheric pressure on earth surface is nearly .............. .
Explain how is the height of mercury column in tube of a simple barometer, a measure of the atmospheric pressure.
Give two reasons for use of mercury as a barometric liquid.
Mention two demerits of a simple barometer and state how they are removed in a Fortin barometer .
The unit torr is related to the barometric height as :
At sea level, the atmospheric pressure is 76 cm of Hg. If air pressure falls by 10 mm of Hg per 120m of ascent, what is the height of a hill where the barometer reads 70 cm Hg. State the assumption made by you.
How is the reading of a barometer affected when it is taken to: A mine
What will be the effect on air pressure if the temperature drops? Why?
Give reason:
Air pressure decreases with increasing altitude.
Define one atmosphere.
