JEE Advanced Model Paper 12 with solutions for online practice

A tank of height ’H ’and base area 9 'A ’ is half filled with water and there is a very small A orifice at the bottom and there is a heavy solid cylinder having base area

A

3

and height of the cylinder is same as that of the tank.The water is flowing out of the orifice. Here cylinder is put into the tank to increase the speed of water flowing out.