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Question

A water pump of power 2kW is installed in a home. Then, the amount of water (in litres) it can raise in, one minute to a height of 10m is :
[Take g=10m/s2]

A
200 L
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B
1200 L
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C
800 L
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D
350
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Solution

The correct option is C 1200 L
Power =mght
m=P×tgh

m=2×103×6010×10=1200kg

Volume =MassDensity=1200103=1.2m3

Volume =1.2m3=1.2×103L=1200L

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