PAL #2  The Sun is 35 o above the horizon. It shines in a window and strikes a small mirror on the wall. The mirror is 3 feet off the floor. The reflected.

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Presentation transcript:

PAL #2  The Sun is 35 o above the horizon. It shines in a window and strikes a small mirror on the wall. The mirror is 3 feet off the floor. The reflected light makes a spot on the floor. How far from the wall is this spot?

Images in 2-D corner Reflector  The face in the lower right of the picture is the real face. Suppose the person winks their right eye. Put an asterisk over their right eye.  Image 2 is a reflection in mirror 2. Put an asterisk over the image of the eye that is winking.  Repeat for image 1, which is a reflection in mirror 1.  The image in the upper left is a reflection of a reflection. Put an asterisk over the winking eye in this image. Is it the same “hand” (right vs left) as the eye that is winking in the real face? Image 1 Image 2 Image 1 Image of image 2 in mirror 1

Images in 2-D corner Reflector  If you place mirrors at right angles, you can look at your reflection directly in one mirror, or look in the corner to see a reflection of your first reflection. If you wave your right hand at the mirrors, the first reflection will wave its ___ hand, and the reflection of a reflection will wave its ___ hand. A. right, right B.left, right C. right, left D.left, left Image 1 Image 2 Image 1 Image of image 2 in mirror 1