Question

what is a depression of light​

Answer 1

Hey mate ☺

The process of splitting of white light into seven colours is called dispersion of light. Example: Formation of Rainbow during a cloudy day.

Hope it helps you ☺✌✌

Answer 2

Not Depression..

It Is Dispersion...

Visible light is actually made up of different colors. Each color bends by a different amount when refracted by glass. That's why visible light is split, or dispersed, into different colors when it passes through a lens or prism.

Hope You Understand..