1. Twinkling of stars is due to atmospheric
(a) dispersion of light by water droplets
(b) refraction of light by different layers of varying refractive indices
(c) scattering of light by dust particles
internal reflection of light by clouds

Question

1.	Twinkling of stars is due to atmospheric
(a)	dispersion of light by water droplets
(b)	refraction of light by different layers of varying refractive indices
(c)	scattering of light by dust particles
internal reflection of light by clouds

Accepted Answer

Answer is (b) refraction of light by different layers of varying refractive indices
Explanation:
Refraction of light keeps the position of source of light change. This will make the stars sparkle.

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