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प्रश्न
The atmospheric pressure at earth's surface is P1 and inside mine is P2. They are related as :
विकल्प
P l =P2
P l > P2
P l < P2
P2 = 0
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उत्तर
The atmospheric pressure at earth's surface is P1 and inside mine is P2. They are related as : P l < P2
संबंधित प्रश्न
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.
Draw a simple labelled diagram of a Fortin barometer and state how it is used to measure the atmospheric pressure.
State two advantages of an aneroid barometer over a simple barometer.
At sea level, the atmospheric pressure is 1.04 x 105 Pa. Assuming g = 10 m s-2 and density of air to be uniform and equal to 1.3 kg m-3, find the height of the atmosphere.
Distinguish between the following:
Isobars and Isotherms
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?
State briefly, how and why the atmospheric pressure of a place varies with the altitude. Draw an approximate graph to illustrate this variation.
Draw a simple diagram of a Fortin's barometer and state how it is used to measure the atmospheric pressure.
