Uncertainty Principle Using ΔEΔt ≥ ħ/2: a Certain Particle's Energy

question 84

Multiple Choice

Uncertainty principle using ΔEΔt ≥ ħ/2: A certain particle's energy is measured by a detector to within 1.0 × 10^-18. What is the minimum uncertainty we can have in its arrival time at the detector? (ħ = 1.055 × 10^-34 J ∙ s)

• A) 5.3 × 10^-16 s
• B) 5.3 × 10^-15 s
• C) 5.3 × 10^-14 s
• D) 5.3 × 10^-13 s
• E) 5.3 × 10^-17 s

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