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Topic Archimedes principle
Asked 3 times in CSE over 6 years (1979–1985), peaking in 1979.
Key insights
- Most tested in CSE — 3 of 3 PYQs
- Most asked in 1979
- Recurs across 3 years (1979–1985)
Across exams
CSE · 3How the concept evolved
Largely a pre-2016 idea — watch for a comeback.
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.
CSE1985
Ice cubes are floating in a glass of water. When the ice cubes melt, the water level in the glass
- A Will first increase and then start decreasing
- B
- C Will remain unchanged ✓
- D Will increase
✓ Correct answer: (C)
Science & Technology › Physics & Chemistry
CSE1981
When the ice floating in a glass of water melts, the level of water will
- A Increase
- B Decrease
- C Remain constant ✓
- D First increase and then decrease
✓ Correct answer: (C)
Science & Technology › Physics & Chemistry
CSE1979
A body partially floats in wafer when
- A The volume of the displaced liquid is equal to the volume of the body
- B The volume of the displaced liquid is greater than the volume of the body
- C The weight of the displaced water is equal to the weight of the body ✓
- D The weight of the displaced water is greater than the weight of the body
✓ Correct answer: (C)
Science & Technology › Physics & Chemistry
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