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When an air bubble of radius 'r' rises f...

When an air bubble of radius `'r'` rises from the bottom to the surface of a lake, its radius becomes `5r//4` (the pressure of the atmosphere is equal to the `10 m` height of water column). If the temperature is constant and the surface tension is neglected, the depth of the lake is

A

`3.53 m`

B

`6.53 m`

C

`9.53 m`

D

`12.53 m`

Text Solution

Verified by Experts

The correct Answer is:
C
`P_(1)V_(1) = P_(2)V_(2) , (P + hdg)V_(0) = PV^(1)`
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