Chapter 4.2, Problem 4.15P

(a)

To determine

The value of $\langle r\rangle$ and $\langle r^2\rangle$ for an electron in ground state of hydrogen in terms of Bohr radius.

(b)

To determine

The value of $\langle x\rangle$ and $\langle x^2\rangle$ for an electron in ground state of hydrogen.

(c)

To determine

The value of $\langle x^2\rangle$ in the state $n=1,l=1,m=1$.