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A family uses 8 kW of power. Direct solar energy is incident on the horizontal surface at an average rate of 200 W per square meter. If 20% of this energy can be converted to useful electrical energy, how large an area is needed to supply 8 kW?
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The correct answer is:
200 ${{m}^{2}}$
Correct Option is : (B)
200 ${{m}^{2}}$
200 ${{m}^{2}}$
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