The diagram shows five isosceles right angle prisms. A light ray incident at 90o at the first face e

Question

The diagram shows five isosceles right angle prisms. A light ray incident at 90^o at the first face emerges at same angle with the normal from the last face. Which of the following relations hold regarding the refractive indices ?

Accepted Answer

1 sin 90o = &#956;1 sin r1 ; &#956;2 sin r2 = &#956;1 cos r1&#956;2 cos r2 = &#956;3 sin r3&#956;4 sin r4 = &#956;3 cos r3 ; &#956;4 cos r4 = &#956;5 sin r51.90o = &#956;5 cos r5Square and add 1 + &#956;22 + &#956;42 = &#956;12 + &#956;32 + &#956;52

Question

Options

Solution

More Geometrical Optics Questions