When a ray of light passes from air to water, the velocity of light in water is a)greater than that in air
b)equal to that in air
c)less than that in air
d)can't be predicted

2.The refractive index of a denser medium with respect to a rarer medium is

a) 1
b) less than 1
c) greater than 1
d) negative

The angle of incidence i and angle of refraction r are equal in a transparent slab when the value of i (in degree)is
a) 0
b) 45
c) 60
d) 90

You are given three media A, B and C of refractive index 1.33, 1.65 and 1.46. The medium in which the light will travel fastest is
a) A
b) B
c) C
d) equal in all media