Question

A light ray travels through three media as shown. Which of the following shows the ascending order of their refractive indices?

• A. n${}_3$, n${}_1$, n${}_2$
• B. n${}_1$, n${}_3$, n${}_2$
• C. n${}_1$, n${}_2$, n${}_1$
• D. n${}_2$, n${}_3$, n${}_1$

Answer 1

The correct option is A n${}_3$, n${}_1$, n${}_2$