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  1. A spin-half particle is in a linear superposition 0.8|↑〉 + 0.6|↓〉 of its spin-up and spin-down states. If |↑〉 and |↓〉 are the eigenstates of σz then what is the expectation value, up to one decimal place, of the operator 10σz + 5σx ? Here, symbols have their usual meanings. ____________
  2. A.
    4.3
    B.
    5.4
    C.
    6.5
    D.
    7.6

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    Workspace

    Answer : Option D

    Explanation :

    -NA-


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