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Twinkling of stars is caused by ?

AReflection of light
BPolarization of light
Crefraction of light
DInterference of light

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Answer and explanation

Correct Answer: C: refraction of light

Explanation: The correct answer is C: Refraction of light. Twinkling of stars is caused by refraction of light. As starlight passes through layers of Earth's atmosphere with varying densities, it bends slightly, causing the star's apparent position and brightness to fluctuate.