Convex parabolic mirrors

In convex mirrors the parallel rays are reflected in such a way that nearly all of them appear to come from the focal point F, as shown in the following visual. This is why a distant light source reflected in a convex spherical mirror appears as a point of light. You can modify the radius of the mirror's curvature and its width, by clicking on and dragging the red dots.

The visual was prepared by José Luis Abreu

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