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Does OP tandon text book speaks any thing about shine of stars in sky is because of tyndall effect ?

Does OP tandon text book speaks any thing about shine of stars in sky is because of tyndall effect ?


 

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1 Answers

Sunil Kumar FP
askIITians Faculty 183 Points
6 years ago
Tyndall effect is not related to the shine of stars. Stars appear to twinkle because of multiple uneven refraction of light through the atmosphere. What this means is that since atmosphere is not even, and different layers of atmosphere have different densities, and also different temperatures, plus hot and cold patches in the same line of sight, as the light passes through these disturbances, it gets distorted. Think of the atmosphere as layers of different prisms. Due to this multiple refraction, some part of light misses our eyes, and at that instance we don't see the star, but the next instance we do. thus stars appear to twinkle.

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