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In a mirror image, is the focal length the distance to the mirror, or to the object
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18-07-2007, 10:18
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 In a mirror image, is the focal length the distance to the mirror, or to the object seen in the reflection? Looking at your own reflection in a mirror, the surface of the glass is a metre away. Do your eyes have to focus on a distance of one metre or two? If there is a chair four metres behind you (and off to the side a little way), is the distance five metres, or eight, or one? I would draw a diagram if I had to. It doesn't seem that a mirror makes an image flat, but it is not exactly like looking at an object directly, either...
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