Fundamentals of Physics Extended
Fundamentals of Physics Extended
10th Edition
ISBN: 9781118230725
Author: David Halliday, Robert Resnick, Jearl Walker
Publisher: Wiley, John & Sons, Incorporated
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Chapter 39, Problem 55P
To determine

To show:

The average value of r is

ravg=Prrdr=1.5a

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A spin state of an electron in the vector form is given by 3i X = A 4 %3D (a) Determine the normalization constant A, assuming it to be real and positive. (b) Write down the x using the X+ and X-. If z-component of the spin of the electron is measured, what is the probability of finding the value in +ħ/2? (c) Determine the expectation value and uncertainty of S? in terms of h when the electron is in spin state x. Justify your answer. (d) Determine the expectation value of the product S?S, in terms of h when the electron is in spin state X.
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Fundamentals of Physics Extended

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