In using ray tracing to graphically locate the image of an object that is placed in front of a mirror, describe three simple rays that you could draw that pass by the head of the object.

Question

Quizplus · Accepted Answer

The Answer is Ray 1: the radial ray; i.e., the ray drawn toward the center of curvature, which is then reflected back along the same path.
Ray 2: the parallel ray; i.e., the incoming ray parallel to the main axis, which is then reflected along a path that extends to the focal point.
Ray 3: the focal ray; i.e., the ray drawn toward the focal point, which is then reflected back parallel to the main axis.

In Using Ray Tracing to Graphically Locate the Image of an Object