A thin film of oil is on water. What is the thinnest that the oil can be to have constructive interference on reflection? The wavelength of the light in air is 480nm. Assume the beam starts in air. [ng =1.00 ,n =1.50 , nyaa =1.33]
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![A thin film of oil is on water. What is the thinnest that the oil can be to have
constructive interference on reflection? The wavelength of the light in air is 480nm. Assume
the beam starts in air. [n =1.00 ,n =1.50 , nwaer =1.33]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F75f96cc1-f20f-41e8-af87-e67129ee7f4c%2Fe6b3e983-e35e-45db-9a04-0ea74961a958%2Fghdjr78_processed.png&w=3840&q=75)
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- A 3.14-kHz tone is being produced by a speaker with a diameter of 0.220 m. The air temperature changes from 0 to 29 °C. Assuming air to be an ideal gas, find the change in the diffraction angle 8. O 0₁ (colder) 0₂(hotter)White light hits the surface of a thin film (n = 1.6) perpendicularly. There is air on both sides of the membrane. The wavelengths 504 nm and 672 nm are missing from the reflected light. a) What is the minimum thickness of the thin film? b) Which wavelengths are strongly visible in the reflected light?the thickness of human hair is to be measured using the interference pattern produced by an air wedge. red light with a wavelength of 638nm is used on an air wedge that is 25.0cm long. If 10 bright fringes are counted across 1.06cm in the air wedge, what is the thickness of the hair
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