Q. The minimum energy required to excite a hydrogen atom from its ground state is
A) $13.6\ eV$
B) $- 13.6\ eV$
C) $3.4\ eV$
D) $10.2\ eV$
Explanation
(d) Minimum energy required to excite from ground state
$= 13.6\left\lbrack \frac{1}{1^{2}} - \frac{1}{2^{2}} \right\rbrack = 10.2eV$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.