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Minimum thickness of the film

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Reference no: EM131161606

(a) A thin film of soap with n = 1.34 hanging in the air reflects dominantly red light with λ = 634 nm. What is the minimum thickness of the film?

(b) Now this film is on a sheet of glass, with n = 1.48. What is the wavelength of the light in air that will now be predominantly reflected?

Reference no: EM131161606

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