A large vessel open at the top contains a non viscous liquid of specific gravity 0.8 . If a hole is made at a depth of 5 m from the free surface, the velocity of efflux is (g=10 m/s2)

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5 m/s

10 m/s

20 m/s

52 m/s

answer is B.

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Detailed Solution

v=2gh=2×10×5=10 m/s

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