# Homework Help: Energy Level Separation

1. May 9, 2010

### captainjack2000

1. The problem statement, all variables and given/known data
Considering only orbital angular momentum, estimate the energy level separation between electron states in a magnetic field of 1 Tesla applied along the z direction.

2. Relevant equations
I am confused by how to even start this question! Isn't orbital angular momentum just integer*h / (2Pi) ??

Could someone please point in the right direction. Thanks

3. The attempt at a solution

2. May 10, 2010

### nickjer

I suggest first writing down the perturbation for a weak magnetic field. Then finding the first order shift in energy for the unperturbed states: $|l,m\rangle$.