⇒Structure of Atom and Nuclei

Correct Option is (A)

The potential energy of electron in hydrogen atom is given by

$U=-\frac{1}{4\pi {\epsilon }_0}.\frac{e^2}{r}$

Hence, as r increases, potential energy will increase. (It will become less negative)

Alternatively, it is also given by

$U=-\frac{13.6}{n^2}eV$