See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

The height of water in the tank becomes maximum when the volume of water flowing into the tank per second becomes equal to the volume flowing out per sec. Volume of water flowing out per second is gh A Av 2   Volume of water flowing in per second = 70 cm3/sec , 70 2  gh A 70 2 1   gh or 4900 980 2    h 