Assume that the researchers place an atom in a state with $n=100, l=2 .$ What is the magnitude of the orbital angular momentum $\vec{L}$ associated with this state?
(a) $\sqrt{2} \hbar ;$
(b) $\sqrt{6} \hbar$
(c) $\sqrt{200} \hbar$;
(d) $\sqrt{10,100} \hbar$