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Cosmic Muons

  • #1

Homework Statement


Within the system of the muon, which relavisitic effect increases the probability for the muon to reach the Earth surface?
Length contraction of the distance to Earth.
Time dilation of its mean-life.
Both of the above.
None the above, the probability is lower in the system of the muon.


Homework Equations


Its conceptual


The Attempt at a Solution


I thought it was both, but the online homework system says that length is correct. am i wrong and why?
 

Answers and Replies

  • #2
Doc Al
Mentor
44,882
1,129
Since the muon is the "clock" (its lifetime is a natural clock), what frame will see that clock slow down?
 
  • #3
Dick
Science Advisor
Homework Helper
26,258
618
Time dilation in one frame is the same as length contraction in another frame, but not in both. Think about it. Which frame are they asking the question in?
 
Last edited:

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