Question
Derive the expressions:
Solution
(i) Suppose the electron is in excited state with n = n2. During emission, the electron drops to a lower energy state with n = n1. The difference between the energies of the initial and final state is given by ∆E.

Since this transition results in the emission of a photon of frequency v with energy hv. We can write

Each spectral line in the emission spectrum corresponds to a particular transition in a hydrogen atom.

Since this transition results in the emission of a photon of frequency v with energy hv. We can write

Each spectral line in the emission spectrum corresponds to a particular transition in a hydrogen atom.