Two light waves are initially in phase and have the same wavelength, 470 nm. They enter two different media of identical lengths of 2.50 µm. If n1 = 1.2 and n2 = 1.5, what is the effective phase difference of the waves when they exit the media? Group of answer choices 3.7 rad 10 rad 1.6 rad 0.6 rad 0 rad
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