Calculating Magnetic Flux Density for Zeeman Splitting 0.05 /cm

[bon]

Homework Statement

What magnetic flux density is required to produce a zeeman splitting of 0.05 /cm in the ground state of hydrogen?

Homework Equations

The Attempt at a Solution

I\'ve worked out that delta E in the ground state is Ub B where Ub is the Bohr magneton. But how do i work out the flux density requied to produce that splitting?!

 

[Redbelly98]

Not sure exactly where your confusion lies, but I'm guessing it's one of two areas:

1. Are you aware that "magnetic flux density" is the same as the magnetic field B?

2. Can you convert the 0.05/cm wavenumber value into a frequency, and from there into an energy?