(d) Estimate the order of magnitude of the magnetic field (in Gauss) that is required to make the quadratric term in comparable to the linear term. How does this compare with the typical magnetic fields observed in the Milky Way? [2] (e) Show that, ignoring the quadratic term, the Schrdinger equation reduces to e e 2 -B (L + 25) v(7) = Ev(7). 2me T 2mec [1]