Question

Explain the process of identifying the focus of a
diverging lens, with the help of ray diagram.​

Answer 1

Explanation:

Any incident ray traveling parallel to the principal axis of a diverging lens will refract through the lens and travel in line with the focal point (i.e., in a direction such that its extension will pass through the focal point).

Any incident ray traveling towards the focal point on the way to the lens will refract through the lens and travel parallel to the principal axis.

An incident ray that passes through the center of the lens will in effect continue in the same direction that it had when it entered the lens.