Question

How are the angle of incidence and angle of refraction related to each other when
(a) a ray of light travels from rarer to denser medium
(b) a ray of light travels from dense to rarer medium.

Answer 1

Answer:

a) Because of rectilinier propagation.

Sorry b) i don't know

Answer 2

Case 1: When light rays travel from optically rarer medium to denser medium then they bend towards normal. ... Case 2: When light rays travel from optically denser medium to rarer medium then they bend away from the normal. In this case the angle of refraction is greater than angle of incidence