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Old Sep 22nd 2012, 11:24 AM   #1
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Find Focus and Mirror

Hi everyone!
So we have the following:

Find 1)the mirror and 2) the focus. Here is what I think: the image is virtual, reversed and bigger than the object.The mirror must then be convex and the focus is to the right of the object? If so, how do I locate it exactly?
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Old Sep 24th 2012, 01:18 PM   #2
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I'm not following your question, nor what the figure is intended to show. Mirrors don't reverse an image, so I wonder if you mean "lens" instead of "mirror?" Also a concave mirror enlarges things, whereas a convex makes them look smaller.

Last edited by ChipB; Sep 27th 2012 at 04:54 AM.
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Old Sep 27th 2012, 04:14 AM   #3
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As before this seems clearly to be towards the door otherwise the student would be slipping on the floor.
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