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Question: In a nuclear reactor, the fuel is consumed at the rate of 1 mg/s. The power generated in kilowatt is...

In a nuclear reactor, the fuel is consumed at the rate of 1 mg/s. The power generated in kilowatt is.

A

9×1049 \times 10^{4}

B

9×1079 \times 10^{7}

C

9×1089 \times 10^{8}

D

9×10129 \times 10^{12}

Answer

9×1079 \times 10^{7}

Explanation

Solution

Power P=Energytime=mc2t,P = \frac{Energy}{time} = \frac{mc^{2}}{t}, = 1 × 10–6× (3 × 108)2

= 9 × 1010 W = 9 × 107 kW.