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Topic Earth's Rotation
Asked 2 times across 2 UPSC exams over 22 years (2002–2024), peaking in 2002.
Key insights
- Most tested in CSE — 1 of 2 PYQs
- Most asked in 2002
- Recurs across 2 years (2002–2024)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
CSE 2002 → CAPF 2024
How the concept evolved
Long-running — most appearances (1 of 2) predate 2016, and it still returns.
Related concepts
Ideas UPSC tests alongside this one — keep exploring.
Sample questions
You've seen the pattern — here are a few of the actual PYQs.
CAPF2024
Consider the following statements regarding the rotation of the Earth
- Since the Earth rotates by 15° each hour, time zones normally differ by one hour
- At the International Date Line, the calendar day changes – advancing a day for eastward travel, dropping back a day for westward travel
- Daylight saving time advances the clock by one hour
- The Moon rotates and revolves about the Earth in the same direction that the Earth revolves around the Sun
Which of the statements given above is/are correct?
- A 1 only
- B 3 and 4 only
- C 1, 3 and 4 ✓
- D 2, 3 and 4
✓ Correct answer: (C)
Geography › Geomorphology
CSE2002
Assertion (A)Artificial satellites are always launched from the earth in the eastward direction. (2002)
Reason (R)The earth rotates from west to east and so the satellite attains the escape velocity
- A Both A and Rare individually true and R is the correct explanation of A
- B Both A and R are individually true but R is not a correct explanation of A
- C A is true but R is false ✓
- D A is false but R is true
✓ Correct answer: (C)
Science & Technology › Space Tech
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