Solved UPSC CDS/OTA Question
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Q · Waves and SoundEasy · 45s
The phenomenon responsible for the twinkling of stars and refraction of sound is: 145
TopicWaves and Sound
Question Typemultiple choice
DifficultyEasy
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
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Change in speed with medium variations causes bending of waves.
153
Final Answer: Option D - Refraction
151