Water is filled in a cylindrical container to a height of 3 m. The ratio of the cross-sectional area of the orifice and the beaker is 0.1 . The square of the speed of the liquid coming out from the orifice is (g = 10 m/s2)
Let A = cross-section of tank
a = cross-section hole
V = velocity with which level decreases
v = velocity of efflux
From equation of continuity,
By Bernoulli's theorem energy per unit volume Energy per unit volume at point A : Energy per unit volume at point B