Chapter 12.1, Problem 4R

To determine

To explain: The result when white colour passes through prism.

Explanation of Solution

Introduction:

A three-dimensional structure or shape with two faces (parallel and congruent) is termed as prism. Prism has same cross-sectional all along its length.

When the white light passes through prism, triangular prism refracts light twice. Once when light enters the prism and second when light leaves the prism (or re-enters the air).

It is known that light’s longer wavelengths have smaller index of refraction. So, it will refract less than shorter wavelengths.

Conclusion:

When the white light enters a prism, each colour of light is bent a different amount and white light will split into the different colors of light.