- #1
Phys12
- 351
- 42
As far as I understand, two electric fields can interact with each other (for instance, two charges being brought close to each other will either repel or attract). A photon is an EM wave and when it comes in contact with a charged particle, say, an electron, the electric field of the wave interacts with it. However, if two electric fields can interact with each other, then why don't two EM waves interact?