Advertisements
Advertisements
प्रश्न
What is meant by the statement 'the atmospheric pressure at a place is 76 cm of Hg'? State its value in Pa.
Advertisements
उत्तर
The atmospheric pressure at a place is 76 cm of Hg means at normal temperature and pressure, the height of the mercury column supported by the atmospheric pressure is 76 cm.
76 cm of Hg = 1.013 x 105 pascal
संबंधित प्रश्न
Explain the following :
Two holes are made in a completely filled sealed tin can to take out oil from it .
Explain how is the height of mercury column in tube of a simple barometer, a measure of the atmospheric pressure.
Why is the barometric height used as unit to express the atmospheric pressure?
The atmospheric pressure at earth's surface is P1 and inside mine is P2. They are related as :
At a given place, a mercury barometer records a pressure of 0.70 m of Hg. What would be the height of water column if mercury in barometer is replaced by water? Take density of mercury to be = 13.6 × 103 kg m-3.
Briefly explain the three chief types of winds.
State briefly, how and why the atmospheric pressure of a place varies with the altitude. Draw an approximate graph to illustrate this variation.
How does the atmospheric pressure change with altitude?
Why is it not advisable to use a fountain pen while travelling in an aeroplane?
Define High pressure
