The refractive indices of four media $A,\ B,\ C$ and $D$ are $1.44,\ 1.52,\ 1.65$ and $1.36$ respectively. When light travelling in air is incident in these media at equal angles, the angle of refraction will be the minimum:(a) in medium A (b) in medium B (c) in medium C (d) in medium D

(c) in medium C

Explanation

The refraction or the amount of bending of light depends on the refractive index  of the two media. It is calculated by $\frac {sin\ i}{sin\ r}$.

The angle of incidence is equal in all the cases, therefore, the refractive index will be maximum in the case of the minimum angle of refraction, which is medium C, as it has a maximum refractive index, i.e 1.65.

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Updated on: 10-Oct-2022

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