Solved UPSC CDS/OTA Question
A solved UPSC CDS/OTA PYQ — decoded step-by-step.
Solve it the standard way once — then learn the shortcut.
Q · Waves and SoundEasy · 45s
Which one of the following is an example of a mechanical wave? 46
TopicWaves and Sound
Question Typemultiple choice
DifficultyEasy
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained — no skipped algebra.
Sound requires a material medium for propagation — hence, it’s mechanical.
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Final Answer: Option C — Sound waves
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