MCQ
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 :
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 :
- A(A) is correct but (R) is not correct
- B(A) is not correct but (R) is correct
- CBoth (A) and (R) are correct and (R) is the correct explanation of (A)
- DBoth (A) and (R) are correct but (R) is not correct explanation of (A)
