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A star appears twinkling in the sky because of
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- scattering of light by atmosphere
- reflection of light by atmosphere
- refraction of light by atmosphere
- diffraction of light by atmosphere
- scattering of light by atmosphere
Correct Option: C
A star appears twinkling in the sky because of refraction of light by atmosphere. Light bends when it passes obliquely from one medium to another. This is called refraction of light.
