Solar Energy Questions with solutions MCQs

1. How much solar energy will be received by 1m2 area in one hour, if the solar constant were 1.4 kilowatt per sqyare metre?

A

1.4 KJ

B

140 KJ

C

1400 KJ

D

5040 KJ

Solar Energy Geography
Correct Answer : D
Explanation :

The value of Solar constant = 1.4kW/m2 = 1.4 kJ/s/m2 .
The Solar energy received in 1 hour on 1 m2 of Area = Value of Solar Constant x Time in Seconds
Area = 1 m2.
Solar energy received on 1 m2 area in 1 second = 1.4 kJ (Solar Constant)
Total energy received in 1 hour = 1.4 kJ x (60 x 60)
Because,
1 hour = 3600 seconds.
Therefore,
Total energy received in 1 hour = 1.4 kJ x (3600) = 5040 kJ

Correct Answered :

Wrong Answered :

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