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A physics instructor wants to project a spectrum of visible-light colors from 400 nm to 700 nm as part of a classroom demonstration. She shines a beam of white light through a diffraction grating that has 700 lines per mm, projecting a pattern on a screen 2.4 m behind the grating.
Part A:How wide is the spectrum that corresponds to m = 1?
Part B:How much distance separates the end of the m = 1 spectrum and the start of the m = 2 spectrum?
Sagot :
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