Question: n Consider a state y) =11)+102)+3) which is given in terms of three orthonormal eigenstates 1), 102) and 103) of an operator B such that

Consider a state ( |psirangle=frac{1}{sqrt{2}}left|phi_{1}rightrangle+frac{1}{sqrt{5}}left|phi_{2}rightrangle+n

Consider a state y) =11)+102)+3) which is given in terms of three orthonormal eigenstates 1), 102) and 103) of an operator B such that B|n) = n|on). Find the expectation value of B for the state ly).

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