The uncertainty relation xp h/(4), expression (8.11), is valid for motion in any direction. For circular motion, the relation may be expressed as rp

The uncertainty relation ΔxΔp ≥ h/(4π), expression (8.11), is valid for motion in any direction. For circular motion, the relation may be expressed as ΔrΔp ≥ h/(4π), where Δr is the uncertainty in radial position and Δp is the uncertainty in the momentum along the radial direction. Describe how Bohr’s model of the hydrogen atom violates the uncertainty relation expressed in the form  ΔrΔp ≥ h/(4π).

Eq. 8.11

. h (8.11)