If protons with magnetic moment mu in the z direction are in a strong magnetic field of magnitude B in the z direction, what is the frequency f of radiation that will be absorbed by the proton as it transitions from parallel to antiparallel states?
Express your answer in terms of mu, B , and Planck's constant h .
The Attempt at a Solution
E = mu * B
h*f= mu * B
f = (mu * B)h
but I got wrong..
the feedback says that my answer is off by multiplicative factor..
please help me..