1. The problem statement, all variables and given/known data Have to find the applied magnetic field for strong zeeman effect for sodium. Given three resonance line components 580nm 585nm and 590 nm 2. Relevant equations Ezeeman=B*Bohr Magneton*ml ml= 0,1 or -1 3. The attempt at a solution Change energy = hf = hc/wavelength Can't get sensible magnetic field answer change wavelength: 10nm so change in energy: 1.988x10-17 Bohr Magneton: 9.27 x 10 ^-24 J/T B= very high answer 2.6 MT and should be low anywhere from 0 - 60 T Something is wrong here but not sure how to do it.