The rainbow is an arch of seven colours visible in the sky, which is produced by the dispersion of the sun’s light by raindrops in the atmosphere. A rainbow is produced by the dispersion of white sunlight by raindrops (or water drops) in the atmosphere. Each raindrop acts as a tiny glass prism, splitting the sunlight into a spectrum.

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What is a rainbow?

Question

What is a rainbow?

Short Answer

Solution

The rainbow is an arch of seven colours visible in the sky, which is produced by the dispersion of the sun’s light by raindrops in the atmosphere.
A rainbow is produced by the dispersion of white sunlight by raindrops (or water drops) in the atmosphere. Each raindrop acts as a tiny glass prism, splitting the sunlight into a spectrum.

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Dispersion of Light

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Q 27. (b) (i)Q 27. (a)Q 27. (b) (ii)

Chapter 3: The Human Eyes And The Colorful World - Exercise 4 [Page 170]