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light wavelength passing through grating. GRADE 12 PHYISCS HELP!

Forums: Science, Homework, Diffraction, Wavlength, Grating
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alicia113
 
Reply Tue 28 Aug, 2012 05:12 am
light with a wavelength of 520 nm abd 630 nm passes through a diffraction grating that contains 6000 lines/cm.

a) sketch a diagram of the image produced from m=0 to m=2, label the order of each fringe

b) calculate the angles for the first and second order maxima that would appear on the screen

i have no idea where to start someone please help!
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