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Q.

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

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a

400m/s

b

200m/s

c

600m/s

d

500m/s

answer is A.

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Detailed Solution

Pressure due to water in the tank = 3 atm -1 atm = 2 atm =20m of water column height of the water in the tank is h = 20m Velocity of efflux =2gh=2×10×20=400m/sec
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