[填空题]
The angular momentum 10 in the hydrogen atom is given both lic z7/z-vze at6/:: 6und0/oqlvn a-gxo/io by t+;6zlduc 5qznhe Bohr model and by quantum med5uzcz6+l;q n chanics. Compare the results for $L = mvr$.
or $L_{\text{QM}}$ = $\hbar$. asdfasdofadsf