The level of water in a tank is 5m high. A hole of area 1cm2 is made at the bottom of the tank. The rate of leakage of water from the hole is : [Take g=10m/s2]
A
10−3m3/s
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B
10−4m3/s
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C
10−2m3/s
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D
10−1m3/s
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Solution
The correct option is A10−3m3/s Given, Height of the surface of water in the tank, h=5m Area of hole, A=1cm2=1×10−4m2 We know that rate of leakage of water, Q=Av=A√2gh =10−4×√2×10×5 =10−3m3/s