Solved UPSC CDS/OTA Question
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Q · LongitudeMedium · 45s
Q₅. Consider the following: A place on 90° W will have local time behind GMT. Longitudes are used for calculating standard time zones. The Earth rotates from east to west. Which are correct?
TopicLongitude
Question Typemultiple choice
DifficultyMedium
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained — no skipped algebra.
Explanation:Earth rotates west to east, not east to west. So statement 3 is wrong.
Final Answer: Option D — 1 and 2 only