A hole is made at the bottom of the tank filled with water (density = 1000 k g / m 3 ). If the excess pressure at the bottom of the tank is three atmospheres (1 atmosphere = 10 5 N / m 2 ), then the velocity of efflux is

Question

A hole is made at the bottom of the tank filled with water (density = 1000 k g / m 3 ). If the excess pressure at the bottom of the tank is three atmospheres (1 atmosphere = 10 5 N / m 2 ), then the velocity of efflux is, 400 m / s, 200 m / s, 600 m / s, 500 m / s

MARKS App · Accepted Answer

The excess pressure at the bottom of the tank, p = ρ g h = 3 atm = 3 × 10 5 N / m 2 So, the height of the liquid in container h = 3 × 10 5 10 × 10 3 = 300 10 Now, velocity of efflux = 2 g h = 2 × 10 × 300 10 = 600 m / s

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