Maybe this is a stupid question, but I dont understand what force is driving photons in light beams to go up and down, making a sine wave. How often in which it oscillates determines the frequency yeah, but why does it do that in the first place? And why is it that when light is emitted, instead of scattering like individual particles, the photons stay in a line. Like there’s a force that is keeping them in a straight line, and theres a force causing them to oscillate. Maybe they arent forces, but I just don’t get it.
In: Physics
> And why is it that when light is emitted, instead of scattering like individual particles, the photons stay in a line.
Here photons behave similarly to particles – neither will scatter unless they collide with something. A particle in a vacuum will just keep traveling in the same direction.
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