Sand is pouring from a pipe at the rate of 12 `c m^3//s`. The falling sand forms a cone on the
Channel: Doubtnut
Date: 2020-07-05

Sand is pouring from a pipe at the rate of 12 `c m^3//s`. The falling sand forms a cone on the ground in such a way that the height of the cone is always one-sixth of the radius of the base. How fast is the height of the sand cone increasing when the height is 4cm.