Explain the dispersion of white light by a glass prism with diagram

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Introduction

A ray of white light while travelling obliquely from one medium to another, it is seen to deviate from its original course.

Along with that, while passing through a transparent substance like a glass prism, the white light distributes in its constituent spectrum of colours. Based on these two concepts of physics, the tutorial intends to include an effective discussion regarding refraction and dispersion of light through a prism.

What Is The Dispersion of Light?

The phenomenon of dispersion can be defined as the splitting of visible light into its component colours.

Dispersion of light notes pdf

Light is considered a mixture of different colours which have different wavelengths and similar points of frequency at a singular point. The visibility and wave of white light, in physics, is considerably known as a significant form of electromagnetic waves.

Figure 1: Visible light spectrum

White light gets its visibility when all the spectrums are seen together.

Based on these conditions, the human eye can catch all the visible spectrum of light