Q. A boy stands straight infront of a mirror at a distance of $30cm$ away from it. He sees his erect image whose height is 1/5$^{th}$ of his real height. The mirror he is using is
A) Plane mirror
B) Convex mirror
C) Concave mirror
D) Plano-convex mirror
Explanation
(b) Size is $\frac{1}{5}$. It can’t be plane and concave mirror, because both conditions are not satisfied in plane or concave mirror. Convex mirror can meet all the requirements
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.