Topic Energy
Asked 2 times across 2 UPSC exams over 3 years (2020–2023), peaking in 2023.
Key insights
- Most tested in CDS — 1 of 2 PYQs
- Most asked in 2023
- Recurs across 2 years (2020–2023)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
NDA 2020 → CDS 2023
How the concept evolved
Rising — more than half its appearances (2 of 2) are since 2016.
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.
CDS2023
The following diagram shows a pendulum at different positions. Which one of the following statement is true ?
- A The pendulum has minimum potential energy at positions P and T.
- B The pendulum has minimum potential energy at positions Q and S.
- C The pendulum has minimum potential energy at position R. ✓
- D The pendulum has same potential energy at all positions.
✓ Correct answer: (C)
Science & Technology › Physics & Chemistry
NDA2020
Which one of the following is NOT the unit of energy ?
- A Joule
- B Watt-hr
- C Newton-metre ✓
- D kg-metre/sec²
✓ Correct answer: (C)
Science & Technology › Physics & Chemistry
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