We’re being asked to determine which of the given transitions represent the absorption of a photon with the highest frequency.
Identify which of the given transitions represent absorption of a photon:
Which transition in a hydrogen atom would absorb the photon of greatest frequency?
n = 3 to n = 1
n = 6 to n = 2
n = 2 to n = 9
n = 35 to n = 2
n = 12 to n = 6
n = 1 to n = 4