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प्रश्न
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उत्तर
Mercury is used in barometer because
(i) It can be obtained in pure form.
(ii) It does not vaporizeat ordinary temperatures.
(iii) Its density is high and hence the length of the mercury column supported by atmospheric pressure is 76 cm which is practically possible.
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संबंधित प्रश्न
We do not feel uneasy even under the enormous atmospheric pressure. Give a reason.
Why is the barometric height used as unit to express the atmospheric pressure?
How is the barometric height of a simple barometer affected if A drop of liquid is inserted inside the tube?
How is the reading of a barometer affected when it is taken to (i) a mine, and (ii) a hill?
The normal atmospheric pressure is :
At sea level, the atmospheric pressure is 76 cm of Hg. If air pressure falls by 10 mm of Hg per 120m of ascent, what is the height of a hill where the barometer reads 70 cm Hg. State the assumption made by you.
A solid weighs 2.10 N in air. It has a relative density of 8.4. How much will the body weigh if placed: In a liquid of relative density 1.2
What is an aneroid barometer?
Draw a neat and labeled diagram to explain its construction and working.
A low-pressure system is also called ______ and ______.
Define Low pressure.
