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The atmospheric pressure at earth surfac...

The atmospheric pressure at earth surface is `P_(1)` and inside a mine is `P_(2)`. They are related as :

A

`P_(1)=P_(2)`

B

`P_(1)gtP_(2)`

C

`P_(1)ltP_(2)`

D

`P_(2)=0`

Text Solution

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The correct Answer is:
A, B
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