1. The problem statement, all variables and given/known data How many times larger is the spacing between the energy levels with n=3 and n=8 spacing between the energy levels with n=8 and n=9 for hydrogen atom? 2. Relevant equations En=Rh[1/ni2- 1/nf2] 3. The attempt at a solution From the above stated equation, i managed to calculate the ratio of their energies, however, I can even calculate λ or frequency v, but what about the ratio of their size?