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Q.

A hole is made at the bottom of a tank filled with water. If the total pressure at the bottom of water is 3 atmosphere then velocity of efflux is approximately 1atm=105N/m2, ρW=103kg/m3

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a

10√2 m/s

b

10√6 m/s

c

10√5 m/s

d

20 m/s

answer is D.

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Detailed Solution

3P−P=12ρv2 ∴v=4Pρ=4×105103=20m/s
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