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Unformatted text preview: image), so that our result for focal length should be negative. Since  p + i  = 20 cm and i = p/ 2, we Fnd p = 40 cm and i = 20 cm. Substituting these into Eq. 359 leads to f = 40 cm, which is negative as we expected....
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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.
 Fall '08
 SPRUNGER
 Physics

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