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Unformatted text preview: sin tan to relate these directly, or we could be exact as we show below: If tan = b a , then sin = b a 2 + b 2 . Therefore, this exact use of Eq. 3712 leads to 1 . 22 d = sin = 1 2 D p x 2 + ( D / 2) 2 where = 550 10 6 mm and 1 mm x 15 mm. Using the value of D found above, this leads to a range of d values: 0 . 015 mm d . 23 mm....
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 Fall '08
 SPRUNGER
 Physics, Light

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