Chapter 10.5, Problem 1bT

Consider a point on the distant object that is also on the principal axis of the lens.

On the diagram below, sketch several rays from this distant point that reach the lens.

How are these rays oriented with respect to one another and to the principal axis? Explain.

On the basis of your observations from part A, show the continuation of each of these rays through the lens and out the other side. On the diagram, indicate where the rays converge.

Note: Refraction takes place at the two surfaces of the lens. However, in drawing a ray diagram for a thin lens, it is customary to draw rays as if all refraction takes place at the center of the lens.