294CHAPTER 23 Thus, the final image is located 160 cm to the left of the lens The overall magnification is 12123qqqMMMM33ppp==−−−, or ( )()60.0 cm400 cm160 cm0.800100 cm300 cm160 cmM−=−−−−0Since M<, the final image is inverted 23.52(a) Using the sign convention from Table 23.2, the radii of curvature of the surfaces are . The lens maker’s equation then gives 15.0 cm and 10.0 cmRR=+111.50115.0 cm10.0 cmnfRR−=−−−or 12.0 cmf(b) If p→ ∞, then 12.0 cmqf==−The thin lens equation gives, ( )12.0 cm12.0 cmppfqpf p−−+and the following results: (c) If 336.0c+mpf, 9.00 cmq(d) If 12.0 cm+, 6.00 cmq(e) If 26.
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