What is the geometrical shape of the wavefront in the following?
A ray of light after emerging out of convex lens when a point source is placed at its focus.
Answer & explanation
Correct answer: option 3
This is a case of planar wavefront.

What is the geometrical shape of the wavefront in the following?
A ray of light after emerging out of convex lens when a point source is placed at its focus.
Correct answer: option 3
This is a case of planar wavefront.
