A soap/water film on a wire loop (this means a thin layer of water with air on either side, and nair < nwater) appears black at its thinnest portion when the reflected light is viewed. A thin oil film floating on water appears bright at its thinnest portion when the reflected light is viewed (note that nair < noil < nwater). What is the reason for this difference? Select one: a. When the light travels from water (soap film) to air, the reflected ray undergoes a half-wavelength phase shift, but when it goes from oil to water, the reflected ray has no phase shift O b. When the light travels from oil to water, the reflected ray undergoes a half-wavelength phase shift, but when it goes from water (soap film) to air, the reflected ray has no phase shift C. Oil is naturally much more reflective than a soap film O d. When the light travels from air to water (soap film), and from air to oil, the reflected rays both undergo a half-wavelength phase shift O e. When the light travels from water (soap film) to air, and from oil to water, the reflected rays both undergo a half-wavelength phase shift

A soap/water film on a wire loop (this means a thin layer of water with air on either side, and nair < nwater) appears black at its thinnest portion when the reflected light is viewed. A thin oil film floating on water appears bright at its thinnest portion when the reflected light is viewed (note that nair < noil < nwater). What is the reason for this difference? Select one: a. When the light travels from water (soap film) to air, the reflected ray undergoes a half-wavelength phase shift, but when it goes from oil to water, the reflected ray has no phase shift O b. When the light travels from oil to water, the reflected ray undergoes a half-wavelength phase shift, but when it goes from water (soap film) to air, the reflected ray has no phase shift C. Oil is naturally much more reflective than a soap film O d. When the light travels from air to water (soap film), and from air to oil, the reflected rays both undergo a half-wavelength phase shift O e. When the light travels from water (soap film) to air, and from oil to water, the reflected rays both undergo a half-wavelength phase shift

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter13: State Of Matter

Section: Chapter Questions

Problem 99A

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