Q. What is the phenomenon behind the twinkling appearance of stars when viewed from the surface of the Earth?
✅ Correct Answer: (A)
Atmospheric refraction of starlight
Explanation: Twinkling of stars (astronomical scintillation) occurs because starlight passes through varying layers of the Earth's atmosphere with fluctuating temperatures and densities, causing the light rays to continuously refract in slightly changing directions.
Explanation by: Mr. Dubey
Twinkling of stars (astronomical scintillation) occurs because starlight passes through varying layers of the Earth's atmosphere with fluctuating temperatures and densities, causing the light rays to continuously refract in slightly changing directions.