Back to 27.4 Multiple Slit Diffraction

Unreasonable Results

Avg difficulty 2.5

(a) What visible wavelength has its fourth-order maximum at an angle of 25.0º\text{25}.\text{0}º when projected on a 25,000-line-per-centimeter diffraction grating? (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent?

OpenStax College Physics 2e, 27.4 Multiple Slit Diffraction, exercise 30

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Adapted from College Physics © 2022 Rice University. Licensed under CC BY 4.0. Sources: College Physics 2e, College Physics for AP® Courses 2e. Imported at revision f98d7a7.