278CHAPTER 23 23.18The magnified, realimages formed by concave mirrors are inverted. Thus, 0M<giving 4qMp=−, or Then, 4qp=2111Rpqp=+=+1 544p p=or ()8830.0 cm48.0 cm55Rp===23.19(a) An image formed on a screen is a real image. Thus, the mirror must be concave since, of mirrors, only concave mirrors can form real images of real objects. (b) The magnified, real images formed by concave mirrors are inverted, so 0M<and 5qMp, or 5.0 m1.0 mqp=The object should be 1.0 m in front of the mirror (a – revisited) The focal length of the mirror is 11161.0 m5.0 m5.0 m
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1.00 m, 0.600 m, concave mirrors, 0.83 m, 1