NEET UG 2022 · Physics · Question 43
NEET 2022 Physics, question 43
Question 43 of the NEET 2022 paper (code R1) is a Physics question from Nuclei. Its idea, Nuclear Size and Density, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 4.
Updated 2026-10-08
Q43 · Physics
A nucleus of mass number 189 splits into two nuclei having mass number 125 and 64. The ratio of radius of two daughter nuclei respectively is :
- 125 : 16
- 21 : 1
- 34 : 5
- 45 : 4Official answer
Official answer: option 4 · NTA final answer key
Same idea
The only question on Nuclear Size and Density
No other NEET paper from 2017–2026 tested this exact idea.
Nuclear Size and Density: 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.