Normally muons created by cosmic rays at high altitudes decay in a very short time,a time so short that they should not reach the ground.From the figure below,which muon is most likely to be detected on the ground?

Question

Quizplus · Accepted Answer

Muon B has the longest path length before decaying compared to the other muons. As it travels a longer distance, it is more likely to reach the ground before it decays.

Normally Muons Created by Cosmic Rays at High Altitudes Decay