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Q .     A large open tank has two holes in the wall. One is a square hole of side `L` at a depth `y` from the top and the other is a circular hole of radius `R` at a depth `4y` from the top. When the tank is completely filled with water, the quantities of water flowing out per second from both holes are the same. Then find the value of `R`.


JEE 2000
A

`L/(5π)`

B

`2π L`

C

`L/(sqrt(2π))`

D

`L/2`

HINT

Velocity of efflux at a depth `h`, `v=sqrt(2gh)`
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