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Atoms and Nuclei question

2025 · 7 Apr · Shift 2 · Q63
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  5. /2025 · 7 Apr · Shift 2 · Q63

Atoms and Nuclei question

2025 · 7 Apr · Shift 2 · Q63

JEE MainPhysicsAtoms and NucleiMCQ+4 / −1
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 (2964Cu)(^ {64}_{29} \text{Cu})(2964​Cu) nucleus is greater than that of the carbon (612C)(^ {12}_{6} \text{C})(612​C) nucleus. Reason (R): The nucleus of mass number A has a radius proportional to A1/3A^{1/3}A1/3. In the light of the above statements, choose the most appropriate answer from the options given below:
  1. A
    (A) is correct but (R) is not correct
  2. B
    Both (A) and (R) are correct but (R) is not the correct explanation of (A)
  3. C
    (A) is not correct but (R) is correct
  4. D
    Both (A) and (R) are correct and (R) is the correct explanation of (A)
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