Question

Which of the following is Not True with reference to question
19 (i) above
a) Medium A can be air or vacuum.
b) The refractive index of medium B is less than that of
medium A.
c) Speed of light increases on entering medium B.
d) The ratio of sine of angle of incidence to the sine of
angle of refraction is a constant, for a monochromatic
light, for media A and B.​

Answer 1

Answer:

wait a minute I will give you the ans