A hole is made at the bottom of a tank filled with water. If the total pressure (absolute pressure) at the bottom is 3 atmosphere, then velocity of efflux is
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a
20 ms-1
b
102 ms-1
c
106 ms-1
d
105 ms-1
answer is A.
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Detailed Solution
v = 2ghBut p = hρg or pρ = gh v=2pρ = 2×2×105103ms-1 = 20 ms-1