Question

a point of the principal Axis where incident ray parallel to the principal Axis appear to come from in case of concave lens is​

Answer 1

Answer:

This point is known as the focal point. Notice that a diverging lens such as this double concave lens does not really focus the incident light rays that are parallel to the principal axis; rather, it diverges these light rays.

Explanation:

Answer 2

Answer:

ans no (d) is correct focus is answer d option