The level of water in a huge tank is 20 m. Nearly at the bottom of the tank, there is a hole of 2 cm? cross section. The rate with which the water will leak through the hole is n xx 10^(-3) cm. Find the value of n.

The level of water in a huge tank is 20 m. Nearly at the bottom of the

1.	The level of water in a huge tank is 20 m. Nearly at the bottom of the tank, there is a hole of 2 cm? cross section. The rate with which the water will leak through the hole is n xx 10^(-3) cm. Find the value of n.
Answer» Solution :As RATE of FLOW of WATER `=av =2 xx 10^(-4) sqrt(2gh)` `=2 xx 10^(-4) sqrt(2 xx 10 xx 20)` `=2 xx 10^(-4) xx 20` `=4 xx 10^(-3) m`