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Unformatted text preview: S 2 is 1360 nm ( 1360/400 = 3.4 ) from P 2 . Here we find a difference of path = 3.2 (with S 1 leading since it is closer). Thus, the net difference is net = path source = 2.90 , or 2.90 wavelengths. (b) A whole number (like 3 wavelengths) would mean fully constructive, so our result is of the following nature: intermediate, but close to fully constructive....
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- Spring '08