The energy level diagram for hydrogen The energy of a photon emitted in a transition from the n = 3 state to the n = 2 state is

Question

The energy level diagram for hydrogen  The energy of a photon emitted in a transition from the n = 3 state to the n = 2 state is

Quizplus · Accepted Answer

The energy of a photon emitted in a transition is given by:
E = hc/λ = Ei - Ef
where Ei is the initial energy level and Ef is the final energy level.
Using the energy level diagram, we can see that the transition is from n=3 to n=2, which corresponds to an energy difference of 1.9 eV (3.4 eV - 1.5 eV).
Thus, the answer is B) 1.9 eV.

The Energy Level Diagram for Hydrogen the Energy of a Photon