The Pfund series results from emission/absorption of photons due to transitions of electrons in a hydrogen to/from the n=5 energy level from/to higher energy levels.What is the shortest wavelength photon emitted in the Pfund series?
A)658 nm
B)2.29 µm
C)2.74 µm
D)3.68 µm
E)12.4 µm

Question

Quizplus · Accepted Answer

The shortest wavelength corresponds to the transition from the n=∞ level to n=5. Using the Rydberg formula for hydrogen, the shortest wavelength in the Pfund series is approximately 2.29 µm.

The Pfund Series Results from Emission/absorption of Photons Due to Transitions