Question

A ray of light at an angle of incidence i1 passes
through on equilateral glass prism such that the
refracted ray inside the prism is parallel to its base
and emerges at an angle of emergence i2.
How is the angle of emergence i2 related to the
angle of incidence
i1?​

Answer 1

When the ray inside the prism is parallel to the base, the deviation produced is minimum deviation.

At minimum deviation, angle of incidence = angle of emergence.

∠ i = ∠e

∠i₁ = ∠i₂

Answer 2

Answer:

Angle of incidence =Angle of emergence

Explanation:

When a ray of light inside the prism is parallel to the base,the deviation produced is minimum deviation.