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decal can be read from outside the car, you can also read it when looking into your We conclude that the image that is formed by a flat mirror has the following properties. S E C T I O N 3 6 . 1 • Images Formed by Flat Mirrors 1129 • The image is as far behind the mirror as the object is in front. object arrow points upward as in Figure 36.2, so does the image arrow.) • The image has front–back reversal. Quick Quiz 36.1 In the overhead view of Figure 36.4, the image of the stone seen by observer 1 is at C. At which of the five points A, B, C, D, or E does observer 2 see Conceptual Example 36.1 Multiple Images Formed by Two Mirrors Two flat mirrors are perpendicular to each other, as in Solution The image of the object is at I 1 in mirror 1 and at I 2 in mirror 2. In addition, a third image is formed at I 3 . This third image is the image of I 1 in mirror 2 or, equiva- lently, the image of I 2 in mirror 1. That is, the image at I 1 (or I 2 ) serves as the object for I 3 . Note that to form this image at I 3 , the rays reflect twice after leaving the object at O. Mirror 2 Mirror 1 I 1 I 3 I 2 O Figure 36.5 (Conceptual Example 36.1) When an object is placed in front of two mutually perpendicular mirrors as shown, three images are formed. Quick Quiz 36.2 You are standing about 2 m away from a mirror. The mirror has water spots on its surface. True or false: It is possible for you to see the water 2 1 A B C D E Figure 36.4 (Quick Quiz 36.1) Where does observer 2 see the image of the stone? |