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Unformatted text preview: Since the y axis corresponds to a minimum phase difference, we can count (say, in the first quadrant) the m values for the destructive interference (in the sense of Eq. 35-16) beginning with the one closest to the y axis and going clockwise until we reach the x axis (at any point beyond S 2 ). This leads us to assign m = 7 (in the sense of Eq. 35-16) to the point on the x axis itself (where the path difference for waves coming from the sources is simply equal to the separation of the sources, d ); this would correspond to = 90 in Eq. 35-16. Thus, d = ( 7 + 1 2 ) = 7.5 7.5 d = ....
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- Spring '08