Physics, 21.10.2020 16:01 starfox5454
A plastic film with index of refraction 1.70 is applied to the surface of a car window to increase the reflectivity and thus to keep the car’s interior cooler. The window glass has index of refraction 1.52. (a) What minimum thickness is required if light of wavelength 550 nm in air reflected from the two sides of the film is to interfere constructively? (b) Coatings as thin as that calculated in part (a) are difficult to manufacture and install. What is the next greater thickness for which constructive interference will also occur?
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A plastic film with index of refraction 1.70 is applied to the surface of a car window to increase t...
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