Q. The sun delivers 10$^{3}$ Wm$^{-2}$ of Electromagnetic flux on the earth’s surface. The total power that is incident on a roof of dimensions $6m \times 30m,$is
A) $1.8\ \times 10^{5}\ W$
B) $7.2\ \times 10^{5}\ W$
C) $0.9\ \times 10^{5}\ W$
D) $4.5\ \times 10^{5}\ W$
Explanation
The correct answer is Option A: $1.8\ \times 10^{5}\ W$.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.