PHYSICS 1B03 Lecture 1: Reflections Complex Concepts
Document Summary
Concave - focal point is on the same side of the mirror (as the object/reflective surface), reals rays converge to the focal point. Convex - focal point is on the other side of the mirror (as the object), formed by virtual rays. Virtual: formed not by actual light rays, formed by extending real light rays, dotted lines), cannot be formed by a screen -> formed inside the mirror. Real: formed by actual light rays, formed on a screen. It will not exactly be formed at c because he used this mirror using a sphere. Until now, we"ve being drawing mirrors as part of circles. So if mirrors are formed with spheres or circles, we have spherical abberation. So if the mirror is actually formed from a circle or sphere, we have noted that there is a slight disturbance. The focal point actually shifts depending on where the light hits the mirror.
