Practice question
Question
The uncertainty in position of a proton is 1.5 × 10⁻¹¹ m. What is the minimum uncertainty in its momentum? (h = 6.626 × 10⁻³⁴ J s)
Explanation
Δp ≥ h/(4π Δx) ≈ 3.52×10⁻²⁴ kg m s⁻¹.
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