Physics · Human Eye and Colorful World
Stars twinkle in the night sky but planets do not twinkle because:
- 1They are very far away from the earth resulting in a decrease in the intensity of light
- 2Their physical distance from the earth does not change with time
- 3They emit light of a constant intensity continuously
- 4Planets are much closer to the Earth, acting as extended sources of light so the total variation in the amount of light entering our eye averages out to zero✓
Correct answer
Planets are much closer to the Earth, acting as extended sources of light so the total variation in the amount of light entering our eye averages out to zero
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