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Please wait for the animation to completely load.
This animation has a point source, a beam source, and a mirror. You can also find an angle or create a line with an angle by moving the pink protractor and click-dragging to change the angle (position is given in meters and angle given in degrees). Restart. Which dot is sitting at the focal point of the mirror?
© 2004 by Prentice-Hall, Inc. A Pearson Company