Coincident spectral lines. According to the Rydberg formula (Equation 4.93) the wave...

Coincident spectral lines. According to the Rydberg formula (Equation 4.93) the wavelength of a line in the hydrogen spectrum is determined by the principal quantum numbers of the initial and final states. Find two distinct pairs that yield the same For example, {6851, 6409} and { 15283, 11687} will do it, but you're not allowed to use those!