Question

Compare the ratio of two nuclei of mass number A1 & a2

Answer 1

I think your question is -----> Compare the radius of two nuclei of mass number A1 & A2.

solution :- we know,
radius of nuclei , $R=R_0A^{1/3}$

radius of nuclei of mass number A1 , $R_1=R_0A_1^{1/3}$
radius of nuclei of mass number A2, $R_2=R_0A_2^{1/3}$

$\frac{R_1}{R_2}=\left(\frac{A_1}{A_2}\right)^{1/3}$