Power of a water pump is 2 kW. If $g=10m/sec^{2}$ , the amo…

Physics Work, Energy, Power and Collision Power Single Correct MCQ

Published on: September 12, 2026

Power of a water pump is 2 kW. If $g=10m/sec^{2}$ , the amount of water it can raise in one minute to a height of 10 m is

2000 liter

1000 liter

100 liter

1200 liter

Text Solution

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The correct answer is:

P = $\frac{mgh}{t^4}$ ⇒ ⇒ m = $\frac{p \times t}{gh} = \frac{2 \times 10^{3} \times 60}{10 \times 10}$ -1200 kg

As volume = $\frac{\text{mass}}{\text{density}}$ ⇒ ⇒ $v = \frac{1200\,kg}{10^{3} \, kg/m^{3}} = 1.2 \, m^{3}$

Volume = $1.2m^{3} = 1.2 \times 10^{3} litre = 1200 litre$

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