Q. A man standing in a swimming pool looks at a stone lying at the bottom. The depth of the swimming pool is $h$. At what distance from the surface of water is the image of the stone formed (Line of vision is normal; Refractive index of water is $n$)
A) $h/n$
B) $n/h$
C) $h$
D) $hn$
Explanation
(a) $\mu = \frac{h}{h^{'}} \Rightarrow h^{'} = \frac{h}{n}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.