Q. The ratio of the radii of the nuclei $\ _{13}Al^{27}$and $\ _{54}Te^{125}$is
A) $\sqrt{13}:\sqrt{52}$
B) $2\sqrt{13:}3\sqrt{52}$
C) $3\sqrt{3}:5\sqrt{5}$
D) $3:5$
Explanation
(d) $\frac{R_{1}}{R_{2}} = \left( \frac{A_{1}}{A_{2}} \right)^{1/3} = \left( \frac{27}{125} \right)^{1/3} = \frac{3}{5}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.