The incorrect statement among the following is:

1. When a ray of light gets refracted from a denser to a rarer medium, the speed of light decreases.
2. The frequency of light does not change on refraction.
3. The speed of light V in a medium is related to its wavelength λ and frequency f as V = fλ
4. The incident ray, the refracted ray and the normal at the point of incidence all lie in one plane.

In refraction of light, the relation between incident angle i and refracted angle r is:

1. i > r
2. r > i
3. i = r
4. there is no fixed relation.

The ray AO is shown in the figure given below. The path of refracted ray and emergent ray will be:

(1) the refracted ray will bend towards normal
(2) the refracted ray will bend away from normal
(3) the emergent ray will bend towards normal
(4) emergent ray will bend away from normal

1. (1) and (3)
2. (1) and (4)
3. (2) and (3)
4. (2) and (4)

What is the deviation of a ray of light which is incident normally on the surface of two separating media :

1. 0°
2. 45°
3. 90°
4. 180°