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NEET · Physics · STD 11 - 5. work,energy,power and collision

Water falls from a height of \(60\, \mathrm{~m}\) at the rate of \(15 \,\mathrm{~kg} / \mathrm{s}\) to operate a turbine. The losses due to frictional force are \(10\, \%\) of the input energy. How much 10.Power is generated by the turbine? \(\left(g=10\, \mathrm{~m} / \mathrm{s}^{2}\right)\)  (In \(\mathrm{~kW}\))

  1. A \(10.2\)
  2. B \(8.1\)
  3. C \(12.3\)
  4. D \(7.0\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(8.1\)

Step-by-step Solution

Detailed explanation

\(\mathrm{E}=\mathrm{mgh}\) \(\mathrm{P}_{\text {input }}=\frac{\mathrm{mgh}}{\mathrm{t}}\)