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

question 9

Multiple Choice

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

• A) 1.1 × 10^{-15 s}
• B) 1.1 × 10^{-14 s}
• C) 1.1 × 10^{-13 s}
• D) 1.1 × 10^{-12 s}
• E) 1.1 × 10^{-16 s}

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