Posted by **natash** on Monday, April 28, 2008 at 7:16pm.

I'm doing a lab on helium and hydrogen emission spectra.

so I got violet 20.35cm

blue/green 21.70cm

green 22.75

light green 23.08

yellow 27.70

red 31.70

faint red 33.95

and I also have the wavelenghts for helium spectra, its given. like for ex. violet is 380-420, my question is do I just pick a number in between 380-420?

my results for hydrogen lamp are

purple 19.57cm

green 22.47cm

yellow 26.95

red 31.00

the wavelenghts are not given in this exercise, once I figure out the y=mx+b equation from the helium spectra, do I then plug the data I got from hydrogen in the Y, and figure out X, which would give me the wavelength? Do you follow?

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