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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Definitions:

Group Development

Describes the stages (forming, storming, norming, performing, and adjourning) through which groups pass as they evolve and mature.

Stage

A specific phase or period in a process of development or progression.

Cognitive Dissonance

The mental discomfort experienced by an individual who holds two or more contradictory beliefs, ideas, or values at the same time.

Group Support

The assistance, encouragement, and backing provided by group members to each other.