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There is a small hole of diameter 2 mm i...

There is a small hole of diameter 2 mm in the wall of a water tank at a depth of 10 m below free water surface. Then the velocity of efflux of water from the hole will be

A

`0.14 m/s`

B

`1.4 m/s`

C

`0.014 m/s`

D

`14 m/s`

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