Question

a tank is filled with liquid of densities d1,d2,d3 for heights h1,h2,h3 respectively. The velocity of efflux through a hole at the bottom of the tank is

Answer 1

As per bernauli's equation  p+(1/2)ρu2 is constant.

If we apply the bernauli's equaition at the top surface and at the bottom hole

 



so we get,