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When laser light of wavelength 633.4nm passes through a diffraction grating, the first bright spots occur at 17.8 degrees from the central maximum.
Part A What is the line density (in ) of this grating?
Part B How many additional pares of bright spots are there beyond the first bright spots?
Part C At what angles do the second bright spots occur?
Part D At what angles do the third bright spots occur?
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