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प्रश्न
What does a falling barometer indicate?
उत्तर
A falling barometer indicates the approach of rain or storm or both.
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संबंधित प्रश्न
State two experiences that made you think that air exerts pressure.
How does the atmospheric pressure change with altitude?
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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Two holes are made in a completely filled sealed tin can to take out oil from it .
What is meant by the statement 'the atmospheric pressure at a place is 76 cm of Hg'? State its value in Pa.
State two uses of a barometer.
Mention two demerits of a simple barometer and state how they are removed in a Fortin barometer .
State two advantages of an aneroid barometer.
At higher altitudes, air becomes ______
The increase in internal energy of 1 kg of water at 100°c when it is converted into steam at the same temperature and at 1 atmospheric pressure will be ______.
(density of steam is 0.6 kg m-3, latent heat of vaporisation of water = 2.25 × 106 J kg-1).
