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{l, m} denote simultaneous eigenstates of L and L.. Expectation value of the operator =[L . L_] for the state 2.1) is equal to

{l, m} denote simultaneous eigenstates of L and L.. Expectation value of the operator =[L . L_] for the state 2.1) is equal to 0 2 O /2 None of these

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