Question

Consider the path of a ray of light passing through a rectangular glass slab for different angles of incidence. (i) answer) Which one is greater: angle of incidence or angle of refraction? (ii) What happens to the emergent angle on increasing .

Answer 1

i) angle of incidence

ii) angle of deviation increases

Answer 2

Answer:

1 ) .

Both angles are equal to each others i.e. ∠i = ∠e.

2 ) .

Angle of emergence also increases.

3 ) .

The light ray falls along the normal or the refractive index of the two optical media are  equal.