The radius R of a nucleus of mass number A is given by R=1.3×... | Nuclear Physics

JEE-MAIN 2020

03-09-2020 S2

Question

The radius $R$ of a nucleus of mass number $A$ can be estimated by the formula $R=\left(1.3 \times 10^{-15}\right) \mathrm{A}^{1 / 3} \mathrm{~m}$. It follows that the mass density of a nucleus is of the order of ( $M_{\text {pot. }} \cong M_{\text {neut. }} \simeq 1.67 \times 10^{-27} \mathrm{~kg}$ )

Select the correct option:

$10^{24} \mathrm{~kg} \mathrm{~m}^{-3}$

$10^{10} \mathrm{~kg} \mathrm{~m}^{-3}$

$10^{17} \mathrm{~kg} \mathrm{~m}^{-3}$

$10^3 \mathrm{~kg} \mathrm{~m}^{-3}$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution