Q. The mean distance of sun from the earth is $1.5 \times 10^{8}Km$ (nearly). The time taken by the light to reach earth from the sun is
A) $0.12\ min$
B) $8.33\ min$
C) $12.5\ min$
D) $6.25\ min$
Explanation
(b) $t = \frac{s}{v} = \frac{1.5 \times 10^{8} \times 10^{3}}{3 \times 10^{8}} = 500\ s = 8.33\ min$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.