From my understanding white light is made from all of the visible light's wavelength, and since their wavelength is different they would never be coherent, is there a formula that you could give that would better explain this?
I thought about using the snell’s law because it involves different refractive index but I have no idea why the wavelength would be affected by the snell’s law. I thought that maybe if I found the frequency I might be able to get the wavelength but, I don’t know which formula I should use. I...