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OpenStudy (anonymous):
A grating is 3.2cm wide. A spectral line of wavelength 424nm is observed at 29 degrees in order 2. The grating is made up of how many lines? I know this is not math, but i really need help with this!
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OpenStudy (anonymous):
This is physics
OpenStudy (anonymous):
I don't recall the formulas, do you know them?
OpenStudy (anonymous):
not really :S maybe smething to do with asintheta=mlamda?
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