1.

In the lowest energy level of hydrogen atom, the electron has the angular momentum  [MP PET 1997; BCECE 2003]

A.   \[\pi /h\]    
B.   \[h/\pi \]
C.   \[h/2\pi \]  
D.   \[2\pi /h\]
Answer» D.   \[2\pi /h\]


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