p38_028 - 28. (a) Eq. 38-33 leads to v= 12 nm c= 2.998 108...

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28. (a) Eq. 38-33 leads to v = λ λ c = 12 nm 513 nm ( 2 . 998 × 10 8 m / s ) =7 . 0 × 10 6 m / s . (b) The line is shifted to a larger wavelength, which means shorter frequency. Recalling Eq. 38-30 and
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