Question: 2 . Soap Film Reflecting Light A . A thin film of soap with n = 1 . 3 6 hanging in the air reflects

2. Soap Film Reflecting Light
A.A thin film of soap with n =1.36 hanging in the air reflects dominantly red light with =672 nm. What is the minimum thickness of the film?
B.Now this film is on a sheet of glass, with n =1.54. What is the wavelength of the light in air that will now be predominantly reflected?

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