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Standard XII

Physics

Bernoulli's Principle

When altitude...

Question

When altitude increases pressure __________.

increases

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decreases

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remains constant

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none of the above

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Solution

The correct option is B decreases
Air pressure always decrease with the increase of altitude but not always uniform. The decrease is caused by the compressional effect of the air from above and its density. It is estimated that the pressure decreases at an average one centimeter for every 110 meters.

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