Solved UPSC CDS/OTA Question
A solved UPSC CDS/OTA PYQ — decoded step-by-step.
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Q · LongitudeMedium · 45s
Q₂₃. (PYQ) If Earth’s rotation direction reversed, what would happen to the time zones?
TopicLongitude
Question Typemultiple choice
DifficultyMedium
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained — no skipped algebra.
Explanation:Currently, east longitudes are ahead. Reverse spin → east behind GMT.
Final Answer: Option B — East would be behind GMT