p37_069 - 69. (a) From R = λ/∆λ = N m we find N= λ...

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Unformatted text preview: 69. (a) From R = λ/∆λ = N m we find N= λ (415.496 nm + 415.487 nm)/2 = = 23100 . m ∆λ 2(415.96 nm − 415.487 nm) (b) We note that d = (4.0 × 107 nm)/23100 = 1732 nm. The maxima are found at θ = sin−1 mλ d = sin−1 (2)(415.5 nm) = 28.7◦ . 1732 nm ...
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This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.

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