Chapter 8, Problem 43E

The uncertainty relation $\Delta x\Delta p\ge h/\left(4\pi \right)$ , expression (8.11 is valid for motion in any direction. For circular motion, the relation may be expressed as $\Delta r\Delta p\ge h/\left(4\pi \right)$ , where $\Delta r$ is the uncertainty in radial position and $\Delta p$ is the uncertainty in the momentum along the radial direction. Describe how Boys model of the hydrogen atom violates the uncertainty relation expressed in the form $\Delta r\Delta p\ge h/\left(4\pi \right)$ .