Question

REFRACTION OF LIGHT AT PLANE SURFACES
4. Find the ratio of the refractive index of medium 1 to that of medium 2, when the incident and refrected angles
are given by 30° and 45° respectively​

Answer 1

Explanation:

Question 1

What is a prism?

With the help of a diagram of a prism, indicate its refracting surfaces, refracting edges and base.

Solution 1

A prism is a transparent refracting medium bounded by five plane surfaces inclined at some angle.

Question 2

In refraction of light through a prism, the light ray:

a. Suffers refraction only at one face of the prism

b. Emerges out from the prism in a direction parallel to the incident ray

c. Bends at both the surfaces of prism towards its base

d. Bends at both the surfaces of prism opposite to its base.

Solution 2

The light ray bends at both the surfaces of prism towards its base.