A Very, Very Interesting Problem

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A diffraction grating with 150 lines per mm is analyzed for its interference pattern when illuminated by light of wavelength 275 nm. The problem requires calculating the number of bright spots, or maxima, that appear on a screen positioned at a distance from the grating. The solution involves applying the diffraction formula, which relates the wavelength, grating spacing, and the angle of diffraction. Participants are encouraged to show their work and reasoning rather than simply providing the final answer. Engaging in the solution process is emphasized as a key aspect of the discussion.
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A diffraction grating has 150 "lines" per mm etched upon it. When light of wavelength 275 nm is normally incident upon the grating, how many bright spots appear on a screen a short distance away?:smile:
 
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