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प्रश्न
We do not feel uneasy even under the enormous atmospheric pressure. Give a reason.
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उत्तर
Blood in our body exerts blood pressure which is slightly more than atmospheric pressure and we do not feel uneasy.
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संबंधित प्रश्न
What is the purpose of a barometer?
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.
State two factors which affect the atmospheric pressure as we go up.
What is an altimeter? State its principle. How is its scale calibrated?
What do the following indicate in a barometer regarding weather : gradual fall in the mercury level
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.
State briefly, how and why the atmospheric pressure of a place varies with the altitude. Draw an approximate graph to illustrate this variation.
What is the value of atmospheric pressure?
Define Low pressure.
