Solved UPSC CDS/OTA Question
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Q · Optics-Refraction of LightMedium · 45s
The twinkling of stars is mainly due to:
TopicOptics-Refraction of Light
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Continuous refraction through varying atmospheric layers changes the apparent position.
Final Answer: Option B - Refraction through different layers of the atmosphere