Question

A ray of light travelling through air falls on the
surface of a glass slab and emerges out of it
parallel to the incident ray. The angle of
incidence i, angle of refraction in glass r and
angle of emergence is e. Find the ratio of
sin i /sin e and refractive index of glass in terms of e and r.

Answer 1

Answer:

ask your question properly please.......

Answer 2

Answer:

Sin i/sin e=1

Because both rays are emerged parallrally

So the angle between them is nothing...