In which of the following situations is the time interval between the two events in one frame equal to (LORENZ FACTOR (special y symbol)) multiplied by the time interval in the other frame. explain briefly.
a) A muon is created (event #1) high in earth's atmosphere and decays (event #2) at sea-level. The frames are the muon and the earth.
Can someone please explain this question and this topic in general? I am finding the readings very hard to understand.