In the diagram shown above $n_{1}, n_{2}$ and $n_{3}$ are refractive indices of the media 1,2 and 3

Question

In the diagram shown above $n_{1}, n_{2}$ and $n_{3}$ are refractive indices of the media 1,2 and 3 respectively. Which one of the following is true in this case?\

Professor PC Thomas Classes · Answer

(d):\ In medium 2, the light ray bends towards the normal, so $n_{2}>n_{1}$.\ Similarly, in medium 3 , the light ray bends more towards the normal which indicate that refractive index of medium 3 is greater than medium 2 . So, $n_{3}>n_{1}$.\