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Unformatted text preview: less intense second peak is above or below the more intense peak ~25 cm spacing Free spectral range in wavelength for a given spacing is defined as the wavelength difference between two peaks of 1 and 2 such that (m+1) 1 =m 2 . Note that m=797415 in this example, which gives total path length for one pass of 50.4 cm....
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- Fall '11