1. Tardigrade
  2. Question
  3. Physics
  4. If the nuclear radius of 27 AI is 3.6 fermi, the approximate nuclear radius of 64Cu in fermi is

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. If the nuclear radius of ${}^{27} AI$ is $3.6$ fermi, the approximate nuclear radius of ${}^{64}Cu$ in fermi is

AIPMTAIPMT 2012Atoms

Solution:

Nuclear radius, $R =R_{0} A^{1 / 3}$
where $R_{0}$ is a constant and $A$ is the mass number
$\therefore \frac{R_{A} I}{R_{C} u}=\frac{(27)^{1 / 3}}{(64)^{1 / 3}}=\frac{3}{4}$
or $R_{C u}=\frac{4}{3} \times R_{A l}=\frac{4}{3} \times 3.6$ fermi $=4.8$ fermi