Question

Who discovered phenomenon of dispersion of light? What is Spectrum?
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Answer 1

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Isaac Newton's

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.

Answer 2

$\huge\mathbb\purple{A}\mathbb\blue{N}\mathbb\red{S}\mathbb\green{W}\mathbb\pink{E}\mathbb\purple{R}\blue{:-}$

Isaac Newton

What is spectrum?

Ans : A spectrum is a condition that is not limited to a specific set of values but can vary, without steps, across a continuum. The word was first used scientifically in optics to describe the rainbow of colors in visible light after passing through a prism. 

$\bold{\underline\purple{Hope \: that \: helps}}$