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A camera lens (n = 1.50) is coated with a thin film of magnesium fluoride (n...

A camera lens (n = 1.50) is coated with a thin film of magnesium fluoride (n = 1.38) of thickness 78.0 nm. What wavelength in the visible spectrum is most strongly transmitted through the film?

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the wavelength in the visible spectrum is 430.5 nm

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