Q. Which of the following electron transition in hydrogen atom will require largest amount of energy?
A) From $n = 1$ to $n = 2$
B) From $n = 2$ to $n = 3$
C) From $n = \infty$ to $n = 1$
D) From $n = 3$ to $n = 5$
Explanation
(a)
$E \propto \left( \frac{1}{n_{1}^{2}} - \frac{1}{n_{2}^{2}} \right)$
or $E \propto \frac{1}{n^{2}}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.