Q.
What is the relation between refractive indices $\mu_{1},\mu_{2},$ and $\mu_{3}$ if the behavior of light rays is as shown in figure
A) $\mu_{3} < \mu_{2},\mu_{2} = \mu_{1}$
B) $\mu_{2} < \mu_{1},\mu_{2} = \mu_{3}$
C) $\mu_{3} < \mu_{2} < \mu_{1}$
D) $\mu_{3} > \mu_{2} > \mu_{1}$
Explanation
(a) The central ray goes undeviated. So,${\ \mu}_{2} = \mu_{1}$
Also, $\mu_{3} < \mu_{2}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.