But ELI5 why different colors/frequencies have different n’s? 
Why does white light entering a prism leave a rainbow?
When light hits the prism at an angle θ₀, the exiting angle is given by sinθ = sinθ₀ /𝑛
Different colors have different 𝑛 (in glass)
So each color will exit the prism with a slightly different angle θpic.twitter.com/yIsrbkk76p
-
-
-
Depending on what level of description you're looking for it's rather nontrivial. But you you can think of it as the atoms of the glass have particular "resonant" frequencies.. Being made of charged particles, they will interact with the light in slightly different ways
- 7 more replies
New conversation -
-
-
This Tweet is unavailable.
-
Good idea! I'll do that in a bit!
End of conversation
-
-
-
Wait one second. Are you saying it has NOTHING to do with Pink Floyd?
- End of conversation
New conversation -
-
-
I feel pride
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
When light comes into contact with something, the sound is born and the sound creates color...
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
Like a rainbow with all of the colors
#tswifThanks. Twitter will use this to make your timeline better. UndoUndo
-
-
This Tweet is unavailable.
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.