NEET UG 2021 · Physics · Question 28
NEET 2021 Physics, question 28
Question 28 of the NEET 2021 paper (code O1) is a Physics question from Nuclei. Its idea, Binding Energy per Nucleon, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 2.
Updated 2026-10-08
Q28 · Physics
A nucleus with mass number 240 breaks into two fragments each of mass number 120, the binding energy per nucleon of unfragmented nuclei is 7.6 MeV while that of fragments is 8.5 MeV. The total gain in the Binding Energy in the process is :
- 1804 MeV
- 2216 MeVOfficial answer
- 30.9 MeV
- 49.4 MeV
Official answer: option 2 · NTA final answer key
Same idea
The only question on Binding Energy per Nucleon
No other NEET paper from 2017–2026 tested this exact idea.
Binding Energy per Nucleon: every question and how it was framed
The chapter
Nuclei in ten years of NEET
13 questions from 2017–2026, asked in 9 of 10 papers, about 1.2 a paper. Nuclear Binding Energy alone had 4.