A hydrogen atom is in its third excited state.
(a) How many spectral lines can be emitted by it before coming to the ground state? Show these transitions in the energy level diagram.
(b) In which of the above transitions will the spectral line of shortest wavelength be emitted?
a) Third excited state means n=4
6 spectral line can be emitted before coming to the excited state.
b) From n=4 to n=1