The uncertainty in position of a proton is 1.5 × 10⁻¹¹ m. What is the minimum uncertainty in its momentum? (h = 6.626 ×
Δp ≥ h/(4π Δx) ≈ 3.52×10⁻²⁴ kg m s⁻¹.
Ref: NCERT Class 11 Chemistry > Chapter 2: Structure of Atom > Topic: Developments Leading to Bohr Model - Electromagnetic Radiation and Spectrum