[填空题]
The angular momentum 10 in the hydrogen l f-+s4rls vju,-vob sfg/p 1(atom is given both by t:l 8 c e0fvknq5m0mg1cwi/,jvhe Bohr model and by quantum mechanicc: 5 /cvkli8vgwmfq,j00 e1n ms. Compare the results for $L = mvr$.
or $L_{\text{QM}}$ = $\hbar$. asdfasdofadsf