Q. The power of a water pump is 200 kW. If $g = 10ms^{- 2}$, then the amount of water it can raise in 1 min to a height of 10 m is
A) 2000 L
B) 1000 L
C) 100 L
D) 1200 L
Explanation
(d) $P = \frac{mgh}{t}$
$m = \frac{Pt}{gh} = \frac{200 \times 60}{10 \times 10} = 1200\ L$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.