Question

(d) Monochromatic ray of light is incident on the surface AB of a prism of
.
3
90° angle as shown in the figure. The emergent ray is just refracted and moves
tangential from the surface AC after refraction. Find out refractive index of
the prism material,
3
A
90°
45°
B​

Answer 1

Explanation:

sin i / sinr

sin i = sin e

so

90/90

=1