p37_065 - 65. Using the same notation found in Sample...

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65. Using the same notation found in Sample Problem 37-6, D L = θ R =1 . 22 λ d where we will assume a “typical” wavelength for visible light: λ 550 × 10 9 m. (a) With L = 400 × 10 3 mand D =0 . 85 m, the above relation leads to d =0 . 32 m. (b) Now with D =0 . 10 m, the above relation leads to d =2 . 7m .
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