Q. If aperture of lens is halved then image will be
A) No effect on size
B) Intensity of image decreases
C) Both (a) and (b)
D) None of these
Explanation
(c) Since intensity $\propto (Aperature)^{2}$, so intensity of image will decrease but no change in the size occurs
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.