A physics instructor wants to project a spectrum ofvisible-light colors from 400 nm to 700 nm as partof a classroom demonstration. She shines a beamof white light through a diffraction grating that has700 lines per mm, projecting a pattern on a screen2.9 m behind the grating.Part AHow wide is the spectrum that corresponds to m = 1?Express your answer with the appropriate units.W1 =.52SubmitPart BHÅPrevious Answers Request Answerm* Incorrect; Try Again; 17 attempts remainingμÀwwwwwAy21 = ValueHow much distance separates the end of the m = 1 spectrum and the start of them = 2 spectrum?Express your answer with the appropriate units.Submit Request Answer?Unitswww?

Distance of screen,500 lines per mm,Range of visible color

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