JEE Main · Physics · Thermal Properties of Matter
Mechanical Equivalent of Heat
JEE Main asked Mechanical Equivalent of Heat 3 times in 3 of the 108 shifts Lumi analysed, in 2020, 2022 and 2025. It belongs to Calorimetry, in Thermal Properties of Matter (Physics). The longest wait between two years asking it was 3 years.
Updated 2026-10-24
- Times asked
- 3
- in 3 shifts
- Years
- 3 of 8
- First asked
- 2020
- last in 2025
- Pattern
- Frequent
- across the analysed shifts
Questions on this idea a shift, by year
2017–2026. Asked in 2020, 2022 and 2025. 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: 1 in 12 shifts · 2021: 0 in 24 shifts · 2022: 1 in 24 shifts · 2023: 0 in 12 shifts · 2024: 0 in 18 shifts · 2025: 1 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
Single correct is the usual form. Skill tested: calculation.
- Temperature rise from falling water
- Temperature rise from hammer impact
Difficulty
Every question was multiple choice.
Every question
All 3 questions
From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.
- 8 Apr 2025, Shift 2 · Q32Water falls from a height of 200 m into a pool. Calculate the rise in temperature of the water assuming no heat dissipation from the water…EasySingle correct
- 24 Jun 2022, Shift 2 · Q44A 100 g of iron nail is hit by a 1.5 kg hammer striking at a velocity of 60 . What will be the rise in the temperature of the…EasySingle correct
- 5 Sep 2020, Shift 1 · Q6A bullet of mass 5 g, travelling with a speed of 210 m/s, strikes a fixed wooden target. One half of its kinetic energy is converted into…MediumSingle correct
Shifts: 5 Sep 2020, Shift 1, 24 Jun 2022, Shift 2, 8 Apr 2025, Shift 2.
Same topic
Other ideas in Calorimetry
Calorimetry has 12 ideas JEE Main has asked; 4 of them came up in more than one question.
- Latent Heat and Phase Change4× · 2022
- Specific Heat Capacity3× · 2022
- Heating and Cooling Curves2× · 2024
- Evaporative Cooling Fractiononce · 2026
- Volume Change on Meltingonce · 2025
- Specific Heat Temperature Scale Conversiononce · 2024
- Bullet Impact Meltingonce · 2022
- Ice-Water Equilibrium Traponce · 2022
- Steam Injection Phase Dynamicsonce · 2020
- Three-Liquid Mixingonce · 2020
- Water Equivalentonce · 2017