Unformatted text preview: Solution a) b) 1/s+1/s’=1/f Here focal length f<0 and image position s’<0 while object position s>0. Also, magnification is larger than zero which gives s’=s/4. Here is the equation 1/s4/s=1/50 which gives s=150 cm. f f...
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 Spring '09
 RichardScalettar
 Physics

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