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Topic Lagrange points
Asked 2 times across 2 UPSC exams over 2 years (2024–2026), peaking in 2024.
Key insights
- Most tested in CDS — 1 of 2 PYQs
- Most asked in 2024
- Recurs across 2 years (2024–2026)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
CDS 2024 → GEO 2026
How the concept evolved
Rising — more than half its appearances (2 of 2) are since 2016.
Sample questions
You've seen the pattern — here are a few of the actual PYQs.
GEO2026
A spacecraft is placed at a Lagrange point in our solar system where it is far away from the Sun. Which of the following this point could be?
- A L1 only
- B L2 only
- C Either L1 or L2
- D Either L4 or L5
Answer key not yet available (pending official release)
Science & Technology › Space Tech
CDS2024
In Sun-Earth system, the Sun, the Earth and the Lagrange point L4 form :
- A an isosceles triangle
- B an equilateral triangle ✓
- C a straight line
- D a scalene triangle
✓ Correct answer: (B)
Science & Technology › Space Tech
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