Physics · Special Theory of Relativity
Muons are elementary particles produced in the upper atmosphere with a lifetime of 2.2 μs. Consider muons traveling vertically towards the Earth's surface at a speed of 0.998c. For an observer on Earth, the height of the atmosphere above the surface is 10.4 km. What is the apparent thickness of Earth's atmosphere in the muon's frame of reference?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 110.40 km
- 25.20 km
- 31.65 km
- 40.66 km✓
Correct answer
0.66 km
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