Question Detail
Question
Evaluate the wavelength of the photon emitted as an electron falls from the 7th orbit in the Pfund series.
Correct Answer
Option C is the correct answer.
Detailed Explanation
Pfund series ends at nf=5. 1/lambda=R(1/25-1/49)=2.15e5. lambda=4.65e-6m.
Hint
Pfund series ends at nf=5.