Question

The critical angle for light going from medium X into medium
Y is ϴ. The speed of light in medium X is v, then speed of
light in medium Y is
(a) v(1 – cos ϴ) (b) v/sin ϴ
(c) v/cos ϴ (d) v cos ϴ

Answer 1

Answer:

the critical anglle for light going from y is

(a)v(1– cos ϴ)