Physics, Relativity, Muon, Quantum Physics, Particle Physics.
𝑥′=𝑐𝑡′. The two cases are discussed below. I. Relativistic Doppler Effect: Let us take the case of the source (S) of an electromagnetic wave and its receiver (R) moving away from each other with a relative velocity 𝑣, along the line joining them. Let the frequencies of the wave in their frames