A physics instructor wants to project a spectrum of visible-light colors from 400 nm to 700...

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A physics instructor wants to project a spectrum of visible-light colors from 400 nm to 700...

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 600 lines per mm, projecting a pattern on a screen 2.9 m behind the grating.

How much distance separates the end of the m = 1 spectrum and the start of the m = 2 spectrum?

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Answer 1

Answer #1

We know a - | : mm G00 N Son AL a aL a taking a =700mm) (400*10)2,9) * 600 -3 Dy = .218 m

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