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A tank filled with water has a small hole at a depth 'd' below the surface. The velocity of efflux is 'v'. If the water is replaced with a liquid of density twice that of water, the new velocity of efflux will be:
2v
v
v/2
4v
According to Torricelli's theorem, the velocity of efflux from a small hole in a tank is independent of:
The area of the hole
The height of the liquid above the hole
The acceleration due to gravity
The density of the liquid