I just happened to notice a youtube
Why Some of the Rainbow is Missing
https://youtu.be/gVZwdYZqCUI
Basically .. if a frequency isn't present in the source then (surprise!) it won't be present when the light is split up into a rainbow by a prism. Sorry if that is old news.
Why Some of the Rainbow is Missing
https://youtu.be/gVZwdYZqCUI
Basically .. if a frequency isn't present in the source then (surprise!) it won't be present when the light is split up into a rainbow by a prism. Sorry if that is old news.