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Mathematics 7 Online
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!

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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