ch22_p32 - z = 4.0 cm Solving this for R we obtain R = z 3...

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32. We write Eq. 22-26 as E E max = 1 – z ( z 2 + R 2 ) 1/2 and note that this ratio is 1 2 (according to the graph shown in the figure) when
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Unformatted text preview: z = 4.0 cm. Solving this for R we obtain R = z 3 = 6.9 cm....
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