Answered: FIGURE 17.17 The prominent rainbow…

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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The hard outer coating of many beetles has microscopic structures that produce amazing colors. In some ground beetles, parallel ridges in the cuticle function as a reflection grating, the source of the rainbow colors in the reflection from the beetle as shown. An analysis of the grating spacing can provide valuable taxonomic information. A researcher illuminated a specimen of ground beetle with a beam of yellow light with λ = 570 nm. The resulting diffraction produced clear maxima at 13° and 25°. What is the spacing of the
ridges that produces this diffraction effect?

FIGURE 17.17 The prominent rainbow stripe is due to diffrac-
tion from a reflection grating in the beetle's cuticle.

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