JEE Main Physics · Nuclei

Mass Defect Calculation

Mass Defect Calculation (Nuclei) was asked 4 times in 4 JEE Main shifts, 2021–2026, out of the 42 shifts Lumi analysed. 1 of the 4 had a numerical answer.

Times asked: 4; in 4 shifts
Years: 2021–2026
Usual format: Single correct; Calculation
Pattern: Frequent; repeats across shifts

How it is asked

Mass defect of nucleus in mev
Energy from mass defect

Difficulty

Easy 4Medium 0Hard 0

Where it sits

Chapter: Nuclei. Topic: Nuclear Binding Energy, 17 questions over 9 ideas.

All 4 questions

Newest first, each with its options and official answer.

5 Apr 2026, Shift 2 · Q44Assuming the experimental mass of ${}^{12}_{6}\mathrm{C}$ as 12 u, the mass defect of ${}^{12}_{6}\mathrm{C}$ atom is ________…EasySingle correct
8 Apr 2024, Shift 1 · Q46Binding energy of a certain nucleus is $18\times10^8$ J. How much is the difference between total mass of all the nucleons and nuclear…EasySingle correct
31 Jan 2024, Shift 1 · Q60The mass defect in a particular reaction is 0.4g. The amount of energy liberated is $n\times10^7$ kWh, where $n=$ _______. (speed of light…EasyNumerical value
3 Aug 2021, Shift 2 · Q12If $A$ , $Z$ and $M$ represents the number of nucleons, protons and mass of the nucleus respectively, then mass defect $\Delta M$ is…EasySingle correct