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We do not feel uneasy even under the enormous atmospheric pressure. Give a reason.
What do the following indicate in a barometer regarding weather : gradual fall in the mercury level
What do the following indicate in a barometer regarding weather : sudden fall in the mercury level
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.
Draw a simple diagram of a Fortin's barometer and state how it is used to measure the atmospheric pressure.
Describe an experiment to demonstrate that air exerts pressure.
What is meant by atmospheric pressure?
Figure shows a child blowing air with a straw near the opening of another straw which has its other end in a soft drink bottle. It was observed that the level of the soft drink in the straw rises up as soon as air is blown over its open end. Which one of the following best explains the reason for rise in level of the drink?
Briefly explain the concept of variation of atmospheric pressure.
