Hello, I have a problem that wants me to find the expectation value of <r> <r^2> for the ground state of hydrogen (part a.). My friend and I already completed the exercise but i'm concerned about how we found the expectation value. Since the ground state of hydrogen is only dependent on r do we only integrate over r? I notice that if we integrate over psi and phi we will add an extra 2pi^2 multiplied with what we had previously. Any help would be appreciated:(adsbygoogle = window.adsbygoogle || []).push({});

Recap- Do you integrate over all three dimensions if the wave function is only dependent on one?

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# Homework Help: 3-Dimension Expectation Values (QM)

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