p36_086 - 86. (a) The path length difference between Rays...

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Unformatted text preview: 86. (a) The path length difference between Rays 1 and 2 is 7d − 2d = 5d. For this to correspond to a half-wavelength requires 5d = λ/2, so that d = 50.0 nm. (b) The above requirement becomes 5d = λ/2n in the presence of the solution, with n = 1.38. Therefore, d = 36.2 nm. ...
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