Which transition emits light with shorter wavelength: n=3 to n=2 or n=2 to n=1?
Q1. Which transition emits light with shorter wavelength: n=3 to n=2 or n=2 to n=1?
Answer: n=2 to n=1
Explanation: Greater energy difference (n=2 to n=1) corresponds to shorter wavelength. Option A confuses energy differences with transition levels.