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Questions related to the perception and measurement of light (primarily in the visible range), its mathematical description, the reproduction of colors by different means, color combinations, etc. Please use the tag [electromagnetic-radiation] if you want to refer to the general form of light.
2
votes
Why is Light an EM wave?
There are two main ways for photons to be emitted:
Accelerating charges (as you have mentioned); and
Spontaneous emission when an excited electron drops to a lower energy state.
Electromagnetic wave …
2
votes
Accepted
Young's Double Slit Experiment: Angle between incoming waves
Typically we assume that the distance to the screen is much larger than the width of the slits or the separation of the slits. The light that emerges from the two slits at an angle of theta are almost …