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P is the atmospheric pressure and the pr...

P is the atmospheric pressure and the pressure at the bottom of a tank of water is 3P. If the water is drawn out to lower the level of water by one fifth, then the pressure at the bottom of the tank will be

A

`2P`

B

`(13//5)P`

C

`(8//5)P`

D

`(4//5)P`

Text Solution

Verified by Experts

The correct Answer is:
B
`3P=P+rho gh`
`p.=P+rhog(h-h/5)=P+4/5 rho gh=P`
`+4/52P=13/5P`
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