What is the thinnest soap film (excluding the case of zero thickness) that appears black when illwninated

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What is the thinnest soap film (excluding the case of zero thickness) that appears black when illwninated with light with wavelength 480nm? The index of refraction of the film is 1.33, and there is air on both sides of the film.

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Physics for Scientists and Engineers A Strategic Approach with Modern Physics

ISBN: 978-0133942651

4th edition

Authors: Randall D. Knight

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Question Posted: Oct 20, 2010 03:27 AM

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What is the thinnest soap film (excluding the case of zero thickness) that appears black when illwninated

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IDENTIFY Consider light reflected at the front and rear surfaces of the film SET UP At the fro...View the full answer

Physics for Scientists and Engineers A Strategic Approach with Modern Physics

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