Solved UPSC CDS/OTA Question
A solved UPSC CDS/OTA PYQ — decoded step-by-step.
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Q · EarthquakeMedium · 45s
Arrange the following in the order of decreasing speed: P-waves S-waves Surface waves
TopicEarthquake
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained — no skipped algebra.
Explanation:
P-waves > S-waves > Surface waves in speed.
Final Answer: Option A — 1-2-3