32_Ch 23 College Physics ProblemCH23 Mirrors and Lenses

32_Ch 23 College Physics ProblemCH23 Mirrors and Lenses -...

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298 CHAPTER 23 (a) If f =− , then 2 20.0 cm 2 20.0 cm q =+ and the magnification by the second lens is () ( ) 22 2 20.0 c 2.00 Mq p m 10.0 cm The final image is located 20.0 cm to the right of the second lens and the overall magnification is ( ) 12 MMM == 3.00 2.00 6.00 −+ = (b) Since 0 M < , the final image is inverted (c) If f , then 2 20.0 cm 2 6.67 cm q and 2 2 0.667 q p 2 M = 6.67 cm -10.0 cm The final image is 6.67 cm to the right of the second lens and the overall magnification is ( ) 3.00 0.667 2.00 −+= Since 0 M < , the final image is 23.58 The object is located at the focal point of the upper mirror. Thus, the upper mirror creates an image at
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