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Lec24-1-LPN - ture 24-1 ture 2008 by W.H Freeman and...

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cture 24- cture 24-1 ©2008 by W.H. Freeman and Company
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cture 24- cture 24-2 “Full Length” Mirror 1 2 FG BC AC = = 1 2 GH CD CE = = ( 29 1 1 2 2 FH AC CE AE = + = Only half the object (and image) size is needed.
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cture 24- cture 24-3 Focal Point of a Spherical Mirror When parallel rays incident upon a spherical mirror, the reflected rays or the extensions of the reflected rays all converge toward a common point, the focal point of the mirror. Distance f is the focal length. Real focal point: the point to which the reflected rays themselves pass through. This is relevant for concave mirrors. Virtual focal point: the point to which the extensions of the reflected rays pass through. This is relevant for convex mirrors. f f Rays can be traversed in reverse. Thus, rays which (would) pass through F and strike the mirror will emerge parallel to the central axis. concave mirror: convex mirror
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cture 24- cture 24-4 ©2008 by W.H. Freeman and Company
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cture 24- cture 24-5 ©2008 by W.H. Freeman and Company
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cture 24- cture 24-6 ©2008 by W.H. Freeman and Company
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cture 24- cture 24-7 DEMO 7A-10 Real and Virtual Images
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cture 24- cture 24-8 ©2008 by W.H. Freeman and Company
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