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The pressure and density of a monoatomic...

The pressure and density of a monoatomic gas `(gamma = 5//3)` change adiabitically from `(P_(1), d_(1))` to `(P_(2), d_(2)).` If `(d_(2))/(d_(1))=8` then `(P_(2))/(P_(1))` should be

A

`(1)/(32)`

B

32

C

128

D

`(1)/(8)`

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The correct Answer is:
B
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