- #1

NIN_GIRL81

- 3

- 0

I just joined the forums and hopefully my question is in the right place and isn't a lame one but I'm stuck so here goes:

I want to know how to calculate wavelength from a known distance and color for Helium. I need exact wavelength. I already have the ranges obviously. Usually it's wavelength=c/v but I don't have frequency so any help would be greatly appreciated. Thanks.

:)