Question

the angle of refraction is equal to angle of incidence,when the light ray is traveling a)from rarer to denser medium b)from denser to rarer c)normal to the surface of separation between to media d)all the above​

Answer 1

Answer:

ans is d all the above

Explanation:

as it the law of reflextion

Answer 2

Answer:

Normal to the surface of separation between two media (c)

Explanation:

When light falls normally, i = 0.

u1 sini = u2 sinr, where u1 and u2 cannot be zero.

To satisfy the above when i = 0, r =0 must come. So i = r = 0.

Hope it helps!