Solved UPSC CDS/OTA Question
A solved UPSC CDS/OTA PYQ — decoded step-by-step.
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Q · Waves and SoundEasy · 45s
Which one of the following is not an application of ultrasonic waves? 299
TopicWaves and Sound
Question Typemultiple choice
DifficultyEasy
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Microwaves, not ultrasonic waves, are used for cooking.
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Final Answer: Option C — Cooking food
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