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## Homework Statement

A source which emits a line at 500 nm is found to exhibit the normal Zeeman effect

when placed in a magnetic field. Calculate the magnetic field given that the separation

of adjacent components in the Zeeman pattern is 12.0 pm.

## Homework Equations

E=hc/lambda, ΔE = - μ B

## The Attempt at a Solution

So I've already gone through all the work of calculating ΔE, and μ and subsequently calculating B to be ~0.5T however I have a problem in that in the expression for my B I have ΔE on top and gμ

_{b}at the bottom.

I chose to select g = 2 as my Landé g factor however it's a little bit ambiguous, I'm not sure whether it ought to be g = 1 in which case my value for B would be doubled to ~ 1T

Any help would be much appreciated thank you!