Multiple choice

Twinkling of stars is due to

  1. atmospheric refraction of starlight

  2. atmospheric dispersion of starlight

  3. atmospheric reflection of starlight

  4. atmospheric refraction of sunlight

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A Correct answer
Explanation

The twinkling of stars is caused by the atmospheric refraction of starlight, where the light passes through layers of air with varying densities and temperatures, causing the path of light to bend.