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Suppose that the two waves have wavelength lambda= 610 nm in air. What multiple of lambda gives their phase difference when they emerge if (a) n_(1) = 1.50, n_(2) = 1.60, and L = 700 um, (b) n_(1)= 1.62, n_(2) = 1.72, and L = 700 um, and (c) n_(1) = 1.83, n_(2) = 1.59, and L = 2.16 um? (d) Suppose that in each of these three situations the waves arrive at a common point (with the same amplitude) after emerging, Rank the situations according to the brightness the waves produce at the common point. |
| Answer» SOLUTION :(a) 1.15, (B) 1.15, (C) 0.85, (d) all tie | |