298CHAPTER 23 (a) If f=−, then 220.0 cm220.0 cmq=+and the magnification by the second lens is ()( )22220.0 c2.00Mqpm10.0 cm−The final image is located 20.0 cm to the right of the second lensand the overall magnification is ( )12MMM==3.002.006.00−+=−(b) Since 0M<, the final image is inverted (c) If f, then 220.0 cm26.67 cmqand 220.667qp−2M=6.67 cm-10.0 cmThe final image is 6.67 cm to the right of the second lensand the overall magnification is ( )3.000.6672.00−+=−Since 0M<, the final image is 23.58The object is located at the focal point of the upper mirror. Thus, the upper mirror creates an image at
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