An oil drop (n=1.20) floats on a water (n=1.33) surface and is observed from above by reflected light (see the figure below). (a) Will the outer (thinnest) regions of the drop correspond to a bright or a dark region? (b) How thick is the oil film where one observes the third blue region from the outside of the drop? You can assume that blue light has a wavelength of 450nm. (c) Why do the colours gradually disappear as the oil thickness becomes larger?

An oil drop (n=1.20) floats on a water (n=1.33) surface and is observed from above by reflected light (see the figure below). (a) Will the outer (thinnest) regions of the drop correspond to a bright or a dark region? (b) How thick is the oil film where one observes the third blue region from the outside of the drop? You can assume that blue light has a wavelength of 450nm. (c) Why do the colours gradually disappear as the oil thickness becomes larger?

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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