Question

Define dispersion of light. Name the primary colours. What was the special device made by
Newton in this respect?​

Answer 1

ANSWER :

The scattering of a light into its seven consequent colours is called dispersion of light. There are 7 primary colours :

(1) Violet

(2) Indigo

(3) Blue

(4) Green

(5) Yellow

(6) Orange

(7) Red

You can remember its as VIBGYOR.

Isaac Newton's 1666 experiment of bending white light through a prism demonstrated that all the colors already existed in the light, with different color "corpuscles" fanning out and traveling with different speeds through the prism.

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