Q. Which of the following transitions in a hydrogen atom emits photon of the highest frequency
A) $n = 1$ to $n = 2$
B) $n = 2$ to $n = 1$
C) $n = 2$ to $n = 6$
D) $n = 6$ to $n = 2$
Explanation
(a) $\because E_{1} > E_{2}$
$\therefore v_{1} > v_{2}$
$i.e.,$ photons of higher frequency will be emitted if transition takes place from $n = 2$ to 1
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.