Question

who discovered the dispersion of white light and when . and how ​

Answer 1

Answer:

The dispersion of light is the phenomenon of splitting of a beam of white light into its seven constituent colours when passed through a transparent medium. It was discovered by Isaac Newton in 1666. Newton discovered that light is made up of seven different colours. He passed a beam of sunlight through a glass prism.

Answer 2

Answer:

Isaac Newton discovered the dispersion of white light in 1666.

He passed a light beam through a prism and he found that light was split up into 7 colors when it passed from a lighter medium (air) to a heavier medium (prism).

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