- #1
Akihiro
- 11
- 0
Hi, everyone, I'm a high school student and i want to ask if an electron moves in the same direction as the photon which is about to strike it, would it recoil away as if struck by one with a lower frequency (due to Dopler's effect/ red-shifting effect) or would it recoil as if struck by the photon of original frequency without any alteration?