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18. Monochromatic coherent light of amplitude E, and angular ac frequency w passes through three parallel slits, cach sepa- rated by a distance d from its neighbor. (a) Show that the time-averaged intensity as a function of the angle 8 is (2nd sin 6 1(0) - 11+ 2 cos (b) Explain how this expression describes both the primary and the secondary maxima. (c) Determine the ratio of the intensities of the primary and secondary maxima. Hint: See Problem 16.

18. Monochromatic coherent light of amplitude E, and angular ac frequency w passes through three parallel slits, cach sepa- rated by a distance d from its neighbor. (a) Show that the time-averaged intensity as a function of the angle 8 is (2nd sin 6 1(0) - 11+ 2 cos (b) Explain how this expression describes both the primary and the secondary maxima. (c) Determine the ratio of the intensities of the primary and secondary maxima. Hint: See Problem 16.

College Physics
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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18. Monochromatic coherent light of amplitude E, and angular frequency o passes through three parallel slits, each sepa- rated by a distance d from its neighbor. (a) Show that the time-averaged intensity as a function of the angle 8 is 2nd sin I(0) - 1 1+2 cos (b) Explain how this expression describes both the primary and the secondary maxima. (c) Determine the ratio of the intensities of the primary and secondary maxima. Hint: See Problem 16.
Transcribed Image Text:18. Monochromatic coherent light of amplitude E, and angular frequency o passes through three parallel slits, each sepa- rated by a distance d from its neighbor. (a) Show that the time-averaged intensity as a function of the angle 8 is 2nd sin I(0) - 1 1+2 cos (b) Explain how this expression describes both the primary and the secondary maxima. (c) Determine the ratio of the intensities of the primary and secondary maxima. Hint: See Problem 16.
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