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प्रश्न
We do not feel uneasy even under enormous pressure of the atmosphere above as well as around us. Give a reason.
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उत्तर
We do not feel uneasy under enormous pressure of the atmosphere above as well as around us because of the pressure of our blood, known as blood pressure, is slightly more than the atmospheric pressure. Thus, our blood pressure balances the atmospheric pressure.
संबंधित प्रश्न
Write the numerical value of the atmospheric pressure on the surface of earth in pascal.
How will you show that there is vacuum above the surface of mercury in a barometer? What name is given to this vacuum?
What is an aneroid barometer? Draw a neat and labelled diagram to explain its construction and working.
State two advantages of an aneroid barometer over a simple barometer.
Convert 1 mm of Hg into pascal. Take density of Hg = 13.6 x 103 kg m-3 and g = 9.8 m s-2 .
Why are the months of January and July used to describe the world distribution of pressure?
What is the purpose of a barometer? State two major defects of a simple barometer.
Air pressure is expressed in ______.
Briefly explain the concept of variation of atmospheric pressure.
