Water pours out rate of Q from a tap, into a cylindrical vessel of radius r. The rate at which the height of water level rises the height is h, is

A. `(Q)/(pi rth)`

B. `(Q)/(pi r^(2))`

C. `(Q)/(2 pi r^(2))`

D. `(Q)/(pi r^(2) h)`

A. `(Q)/(pi rth)`

B. `(Q)/(pi r^(2))`

C. `(Q)/(2 pi r^(2))`

D. `(Q)/(pi r^(2) h)`

Correct Answer – B