Q. To an observer on the earth the starts appear to twinkle. This can be ascribed to
A) The fact that stars do not emit light continuously
B) Frequent absorption of star light by their own atmosphere
C) Frequent absorption of star light by the earth’s atmosphere
D) The refractive index fluctuations in the earth’s atmosphere
Explanation
The correct answer is Option D: The refractive index fluctuations in the earth’s atmosphere.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.