A glass slab made of a material of refractive index n1

Reflection & Refraction (C10)

A glass slab made of a material of refractive index n1 is kept in a medium of refractive index n2. A light ray is incident on the slab. Draw the path of the rays of light emerging from the glass slab, if (i) n1 > n2 (ii) n1 = n2 (iii) n1 < n2

Answer

  1. The ray moves towards the normal.

  2. The ray moves undeviated.

  3. The ray moves away from the normal.