Q. In a hydrogen atom, the electron in a given orbit has total energy $- 1.5\ eV$. The potential energy is
A) 1.5 eV
B) $- 1.5\ eV$
C) 3.0 eV
D) $- 3.0\ eV$
Explanation
(d) PE$= 2\ \times \ $total energy
$= 2( - 1.5)\ eV = - 3.0\ eV$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.