Q. If the distance between a point source and screen is doubled, then intensity of light on the screen will become
A) Four times
B) Double
C) Half
D) One-fourth
Explanation
(d) $Intensity \propto \frac{1}{(Distance)^{2}}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.