272CHAPTER 23 23.4The virtual image is as far behind the mirror as the choir is in front of the mirror. Thus, the image is 5.30 m behind the mirror. The image of the choir is from the organist. Using similar triangles, gives 0.800 m5.30 m6.10 m+=6.10 m0.600 m0.800 mh′=()or 6.100.600 m0.80h′m4.58 m0 m==±²³±±´µ¶·¸¹º»¼½µ»··¾·»µ¹¸¿´¾À´ÁÂ¾»·±²³´µ¶··¸²¹ºµ»·´¹Ã¾Ä½ÂÅ²Æ±´µ±²Ç±±´µ±±23.5
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