The Expectations Value of a Function F(x)of X When the Wave

question 19

Multiple Choice

The expectations value of a function f(x) of x when the wave function depends only on x is given by < f(x) > =

• A) \(\int _ { - \infty } ^ { + \infty } \sqrt { f ( x ) } \psi ( x ) d x\) .
• B) \(\int _ { - \infty } ^ { + \infty } f ( x ) \psi ( x ) d x\) .
• C) \(\int _ { - \infty } ^ { + \infty } f ( x ) \psi ^ { * } ( x ) d x\) .
• D) \(\int _ { - \infty } ^ { + \infty } \psi ^ { * } ( x ) f ( x ) \psi ( x ) d x\) .
• E) \(\int _ { - \infty } ^ { + \infty } \psi ^ { * } ( x ) \frac { f ^ { 2 } ( x ) } { 2 } \psi ( x ) d x\) .

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