Q. Stars twinkle but planets do not twinkle because
A) their distance from the earth does not change with time
B) they emit light of a constant intensity
C) they are nearer to the earth and hence we receive a greater amount of light and therefore minor variations in intensity are not noticeable
D) they are very far away from the earth resulting in decrease in intensity of light
✔ Correct Answer: they emit light of a constant intensity
Exam Insight
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