Exam-style question
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Why do muons created in the upper atmosphere reach the Earth's surface?.
- A.They are accelerated by Earth's magnetic field
- B.They experience time dilation
- C.They have higher mass
- D.They travel slower than light
Model answer
What a good answer should say
- They experience time dilation
Explanation
Why this works
Evidence: Muon lifetime in the upper atmosphere. Interpretation: Muons have a short rest lifetime but survive longer due to time dilation.
Implication: Their decay is delayed, allowing them to reach the surface. Conclusion: This demonstrates time dilation for moving particles.
Common mistake
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