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Question

How much solar energy will be received by $$1m^2$$ area in one hour if the solar constant is $$1.4kW/m^2?$$


A
50.4J
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B
504J
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C
5040kJ
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D
5040J
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Solution

The correct option is C 5040kJ
Solar constant is $$1.4\ KW/m$$$$^2$$. Hence, $$1.4\ KW/m^2$$ is incident upon the area of $$1\ m^2$$.
Total energy incident in 1 hour on an area of $$1\ m^2$$ will be $$1.4\ kW$$ x $$1\ hr$$
Hence, energy is $$1.4\ kWH$$
$$1.4\ kWH$$ = $$5040\ kJ$$.

Physics

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