A diffraction grating with 600 lines per mm is illuminated
A diffraction grating with 600 lines per mm is illuminated with light of wavelength 520 . A very wide viewing screen is 2.1 behind the grating. What is the distance between the two fringes?
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a diffraction grating with 600 lines per mm is illuminated with light of wavelength 520 a very wide viewing screen is
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