JEE Main · Physics · Mechanical Properties of Fluids
Compressibility and Density Changes
JEE Main asked Compressibility and Density Changes 2 times in 2 of the 108 shifts Lumi analysed, all in 2021. It belongs to Elasticity, in Mechanical Properties of Fluids (Physics). In 2021 it came in more than one shift of the same year.
Updated 2026-10-24
- Times asked
- 2
- in 2 shifts
- Years
- 1 of 8
- First asked
- 2021
- the only year
- Pattern
- Gone quiet
- across the analysed shifts
Questions on this idea a shift, by year
2017–2026. Asked in 2021. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Physics questions.
Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 2 in 24 shifts · 2022: 0 in 24 shifts · 2023: 0 in 12 shifts · 2024: 0 in 18 shifts · 2025: 0 in 8 shifts · 2026: 0 in 9 shifts.
Shift by shift
Each square is one analysed shift, in date order. Open a filled one for that paper.
How JEE Main framed it
Numerical value is the usual form. Skill tested: application.
- Depth from fractional volume change and bulk modulus
- Density change under bulk pressure
Difficulty
1 of the 2 questions had a numerical answer.
Every question
All 2 questions
From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.
- 26 Feb 2021, Shift 1 · Q7The normal density of a material is and its bulk modulus of elasticity is K. The magnitude of increase in density of material, when…EasySingle correct
- 31 Aug 2021, Shift 1 · Q25When a rubber ball is taken to a depth of __________ m in deep sea, its volume decreases by 0.5%. (The bulk modulus of rubber =…MediumNumerical value
Shifts: 26 Feb 2021, Shift 1, 31 Aug 2021, Shift 1.
Same topic
Other ideas in Elasticity
Elasticity has 19 ideas JEE Main has asked; 13 of them came up in more than one question. The 12 most asked are below.
- Elastic Moduli18× · 2026
- Stress and Strain Types8× · 2024
- Breaking Stress and Breaking Force7× · 2026
- Series and Parallel Composite Wires7× · 2026
- Hooke's Law5× · 2024
- Elastic Potential Energy4× · 2026
- Elongation Due to Self-Weight4× · 2026
- Error Analysis in Searle's Experiment4× · 2026
- Elastic Energy Density4× · 2025
- Finding Natural Length from Two Tensions3× · 2025
- Searle's Experiment for Young's Modulus2× · 2025
- Compression at Liquid Depth2× · 2024