A convex lens has a focal length f. An object is placed at f on the axis. The image formed is located
A)at infinity.
B)between 2f and infinity.
C)at 2f.
D)between f and 2f.
E)between the lens and f.

Question

Quizplus · Accepted Answer

When an object is placed at the focal point (f) of a convex lens, the rays of light after refraction through the lens become parallel and do not converge to form an image. Thus, the image is formed at infinity.

A Convex Lens Has a Focal Length F