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How much water, a pump of 2 kW can raise in one minute to a height of 10 m, take g = 10 m/s2 ?
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- 1000 litres
- 1200 litres
- 100 litres
- 2000 litres
Correct Option: B
| P = | Here, P = 2kW = 2000 W. | |
| t |
W = Mgh = M × 10 × 10 = 100 M and t = 60 s.
This gives, M = 1200 kg
Its volume = 1200 litre as 1 litre of water contains 1 kg of its mass.
