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Topic Newton's third law
Asked 2 times in NDA over 1 years (2023–2024), peaking in 2024.
Key insights
- Most tested in NDA — 2 of 2 PYQs
- Most asked in 2024
- Recurs across 2 years (2023–2024)
Across exams
NDA · 2How 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.
NDA2024
The masses of two planets are in the ratio of 1 : 7. The ratio between their diameters is 2 : 1. The ratio of forces which they exert on each other is
- A 1 : 7
- B 7 : 1
- C 1 : 1 ✓
- D 2 : 1
✓ Correct answer: (C)
Science & Technology › Physics & Chemistry
NDA2023
Which one of the following statements is true?
- A The force of gravity of the Earth on the Moon is greater than the force of gravity of the Moon on the Earth.
- B The force of gravity of the Moon on the Earth is greater than the force of gravity of the Earth on the Moon.
- C The force of gravity of the Earth on the Moon and of the Moon on the Earth are equal in magnitude and in the same direction.
- D The force of gravity of the Earth on the Moon and of the Moon on the Earth are equal in magnitude but are in opposite directions. ✓
✓ Correct answer: (D)
Science & Technology › Physics & Chemistry
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