Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : The density of the copper \(\left({}_{29}^{64}\mathrm{Cu}\right)\) nucleus is greater than that of the carbon \(\left({}_{6}^{12}\mathrm{C}\right)\) nucleus.
Reason (R): The nucleus of mass number A has a radius proportional to \({\mathrm{A}}^{1/3}\).
In the light of the above statements, choose the most appropriate answer from the options given below :

[JEE Main 2025, 7 Apr (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 density of the copper \(\left({}_{29}^{64}\mathrm{Cu}\right)\) nucleus is greater than that of the carbon \(\left({}_{6}^{12}\mathrm{C}\right)\) nucleus.
Reason (R): The nucleus of mass number A has a radius proportional to \({\mathrm{A}}^{1/3}\).
In the light of the above statements, choose the most appropriate answer from the options given below :

[JEE Main 2025, 7 Apr (Shift 2)]

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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…

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