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## Homework Statement

I found this in Binney's text, pg 154 where he described the radial probability density ##P_{(r)} \propto r^2 u_L##

## Homework Equations

## The Attempt at a Solution

Isn't the radial probability density simply the square of the normalized wavefunction, |ψ

_{(x)}|

^{2}? Why is there an additional factor of r

^{2}?