A diffraction grating 20.0 mm wide has 6000 rulings. Light
Chapter , Problem 45(choose chapter or problem)
A diffraction grating 20.0 mm wide has 6000 rulings. Light of wavelength 589 nm is incident perpendicularly on the grating. What are the (a) largest, (b) second largest, and (c) third largest values of u at which maxima appear on a distant viewing screen?
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