White light is spread out into its spectral components by a diffraction grating. If the grating has 2000 lines per centimetre, at what angle does red light of wavelength 685 nm appear in third order maximum.

White light is spread out into its spectral components by a diffraction grating. If the grating has 2000 lines per centimetre, at what angle does red light of wavelength 685 nm appear in third order maximum.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Diffraction of light

In physics, the term diffraction is defined as the bending of light around the corners of the obstacle. As a light ray passes by an aperture, it bends around the edges or through slits, it spreads out through a narrow opening. The diffracted light will produce fringes of bright and dark or colored bands which are labeled as a diffraction pattern.

Question

c)
White light is spread out into its spectral components by a diffraction grating.
If the grating has 2000 lines per centimetre, at what angle does red light of
wavelength 685 nm appear in third order maximum.

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