TS EAMCET · Physics · Work Power Energy
A pump on the ground floor of a building can pump up water to fill a tank of volume \(36 \mathrm{~m}^3\) in \(30 \mathrm{~min}\). If the tank is \(50 \mathrm{~m}\) above the ground, and the electric power consumed by the pump is \(40 \mathrm{~kW}\), the efficiency of the pump is (Use \(\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^2\) and density of water \(=1000 \mathrm{~kg} / \mathrm{m}^3\) )
- A \(30 \%\)
- B \(25 \%\)
- C \(33 \%\)
- D \(40 \%\)
Answer & Solution
Correct Answer
(B) \(25 \%\)
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