JEE Main 2025 — Nuclear Physics Question with Solution
JEE Main 2025 (23 Jan Shift 2)
Question
Given below are two statements. One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : The binding energy per nucleon is found to be practically independent of the atomic number A, for nuclei with mass numbers between 30 and 170.
Reason (R): Nuclear force is long range.
In the light of the above statements, choose the correct answer from the options given below :
Choose an option
Show full solutionCorrect option: A
Correct answer
A is true but (R) is false
Step-by-step explanation
From graph between B.E/N & A we can see BE/N is almost constant correct
Reason incorrect as nuclear forces are short range forces.
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This is a previous-year question from JEE Main 2025, covering the Nuclear Physics chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.