A Muon Is an Unstable Particle That Has an Average

question 54

Multiple Choice

A muon is an unstable particle that has an average lifetime of 1.52 × 10^-6 s. This is the time interval between its creation in a nuclear process and its extinction into decay products, as measured in a frame of reference at rest with respect to the muon. An "average" muon is observed by a scientist on Earth to travel 342 m in its lifetime. What is the speed of the muon relative to Earth?

• A) 0.821c
• B) 0.681c
• C) 0.601c
• D) 0.551c
• E) 0.335c

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