Answered: Exercise 4.2.2.* Show that for a real… | bartleby

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Exercise 4.2.2.* Show that for a real wave function y(x), the expectation value of
momentum (P)=0. (Hint: Show that the probabilities for the momenta ±p are equal.)
Generalize this result to the case y=cy,, where y, is real and c an arbitrary (real or complex)
constant. (Recall that y) and a|y) are physically equivalent.)

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