350CHAPTER 25 The magnification by the objective lens is ( )11112.5 cm11.51.09 cmqMp=−, and the overall magnification of the microscope is ( )()111.510.0115emMm==−=−25.26The moon may be considered an infinitely distant object ( )p→∞1 500 cmwhen viewed with this lens, so the image distance will be . Considering the rays that pass undeviated through the center of this lens as shown in the sketch, observe that the angular widths of the image and the object are equal. Thus, if wis the linear width of an object forming a 1.00 cm wide image, then oqf810 mw1.0 cmof1.0 cm3.81 500 cmθ=×or 821 mi3.81.610 mi1609 mw=×
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