PHY137H5 Lecture Notes - Lecture 13: Small-Angle Approximation, Curved Mirror, Spherical Aberration
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Reflection off of a planar surface this is the law of reflection: here"s how we derive it rest of proof here: (http://hyperphysics. phy- astr. gsu. edu/hbase/phyopt/fermat. html) Why is it important? images in planar mirrors are always virtual and they are always laterally inverted. Planar mirrors are everywhere, in any optical device that uses mirrors the law of reflection in planar mirrors is important because it explains the converging and diverging properties of concave and convex mirrors. concave mirrors. Why is it important? concave mirrors are used in car headlights telescopes and shaving mirrors. Concave mirrors are important because are used to converge light rays to a focal point convex mirrors. Relevance reflection off of the outside of a spherical surface. How does it work? this is what reflection off of a convex mirror looks like. Why is it important? the light rays diverge since the focal point is behind the mirror, it"s negative convex mirrors are used as:
