A thin film of oil with an index of refraction n = 1.5 and thickness t = 55 nm floats on water. The oil is illuminated from above, perpendicular to the surface. Part A: What is the longest wavelength of light, in nanometers, that will undergo destructive interference when it is shone on the oil? Part B: What is the next longest wavelength of light, in nanometers, that will undergo destructive interference when it is shone on the oil? Part C: What is the longest wavelength of light, in nanometers, that will undergo constructive interference when it is shone on the oil?
A thin film of oil with an index of refraction n = 1.5 and thickness t = 55 nm floats on water. The oil is illuminated from above, perpendicular to the surface. Part A: What is the longest wavelength of light, in nanometers, that will undergo destructive interference when it is shone on the oil? Part B: What is the next longest wavelength of light, in nanometers, that will undergo destructive interference when it is shone on the oil? Part C: What is the longest wavelength of light, in nanometers, that will undergo constructive interference when it is shone on the oil?
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter35: Diffraction And Interference
Section: Chapter Questions
Problem 68PQ
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A thin film of oil with an index of refraction n = 1.5 and thickness t = 55 nm floats on water. The oil is illuminated from above, perpendicular to the surface.
Part A: What is the longest
Part B: What is the next longest wavelength of light, in nanometers, that will undergo destructive interference when it is shone on the oil?
Part C: What is the longest wavelength of light, in nanometers, that will undergo constructive interference when it is shone on the oil?
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VIEWStep 2: Calculate the longest wavelength of light for the destructive interference
VIEWStep 3: Calculate the next longest wavelength of light for the destructive interference
VIEWStep 4: Calculate the next longest wavelength of light for constructive interference
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