The sun deliverse 103 W/m2 of electromagnetic flux to the earth's surface. The total power that is incident on a roof of dimensions 8m × 20m, the solar energy incident on the roof in 1 hour will be:
Answer & explanation
Correct answer: option 1
E = power × time
= 1.6 × 105 × 3600 = 5.76 × 108 J