Derivation of Doppler Formula for Electromagnetic Waves
Derivation of Mechanical Wave Doppler Formula
由于光速不变性原理,电磁波的多普勒公式推导过程区别于机械波,可以应用于机械波。
但机械波的多普勒公式不适用于电磁波的多普勒效应。
From the derivation process of the above formula, it can be concluded that the Doppler effect is only possible in two different inertial frames