In the absence of a prism, what is making the photons in a rainbow congregate into bands of separate colors?

Question

And why are the colors are always in ROYGBV order?

In: 5

Answer 1

They’re in that order because of their wavelengths. If you lookup the electromagnetic spectrum it goes in order from lowest to highest. It starts out with AM, FM, television, microwaves, infrared, ROYGBIV, ultraviolet, X-ray, gamma rays