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JEE Main & Advanced Physics Work, Energy, Power & Collision / कार्य, ऊर्जा और शक्ति Question Bank Power

  • question_answer
    From a waterfall, water is falling down at the rate of 100 kg/s on the blades of turbine. If the height of the fall is 100 m, then the power delivered to the turbine is approximately equal to   [KCET 1994; BHU 1997; MP PET 2000]

    A)             100 kW

    B)               10 kW

    C)             1 kW   

    D)             1000 kW

    Correct Answer: A

    Solution :

                \[P=\left( \frac{m}{t} \right)gh=100\times 10\times 100={{10}^{5}}W=100\ kW\]


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