with stripes of color below.Approximately how thick is the film of soap in the reddishregion of the third stripe indicated? Assume that the film isnearly perpendicular both to your line of sight and to thelight rays from the lamp. For simplicity, assume that theregion specified corresponds to the third maximum of theintensity of reflected red light with a 645 nm wavelength.Second stripeThird stripeFourth stripeThe index of refraction of the soap film is 1.34.thickness of soap film:nm While washing dishes one evening, you admire the swirlingcolors visible in the soap bubbles. You hold up a cup andpeer into its soap-covered mouth. As you hold the cup stilland examine it in the light of a lamp behind you, you noticethat the colors begin to form horizontal bands, as in thefigure. You observe that the film appears black near the top,with stripes of color below.First stripeSecond stripeApproximately how thick is the film of soap in the reddishregion of the third stripe indicated? Assume that the film isnearly perpendicular both to your line of sight and to thelight rays from the lamp. For simplicity, assume that theregion specified corresponds to the third maximum of theintensity of reflected red light with a 645 nm wavelength.The index of refraction of the soap film is 1.34.Third stripeFourth stripe

Given :n=1.34λ= 645nm =645 x 10-9 mm=3

with stripes of color below. Second stripe Approximately how thick is the film of soap in the reddish region of the third stripe indicated? Assume that the film is nearly perpendicular both to your line of sight and to the light rays from the lamp. For simplicity, assume that the region specified corresponds to the third maximum of the intensity of reflected red light with a 645 nm wavelength. The index of refraction of the soap film is 1.34. Third stripe Fourth stripe thickness of soap film: nm

with stripes of color below. Second stripe Approximately how thick is the film of soap in the reddish region of the third stripe indicated? Assume that the film is nearly perpendicular both to your line of sight and to the light rays from the lamp. For simplicity, assume that the region specified corresponds to the third maximum of the intensity of reflected red light with a 645 nm wavelength. The index of refraction of the soap film is 1.34. Third stripe Fourth stripe thickness of soap film: nm

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter3: Interference

Section: Chapter Questions

Problem 91CP: A film of oil on water will appear dark when it is very thin, because the path length difference...

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