The twinkling of stars is due to
A. atmospheric refraction
B. total internal reflection
C. dispersion of light
D. reflection of light
1 answer
Best answer
Answer: A. atmospheric refraction
Starlight is refracted by atmospheric layers whose refractive index keeps changing, so the star's apparent position and brightness keep changing.
Doubtly AI
· 24 Oct 2026
AI-verified · Oct 2026
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