With the help of a labeled diagram, explain how a concave lens diverges a beam of parallel light rays. Mark the principal axis, optical centre, principal focus and focal length of the concave lens on the diagram.

Question

Philoid · Accepted Answer

according to the laws of refraction, When a beam of light rays parallel to one another and also to the principal axis of the concave lens fall on the lens, the incident rays pass through the lens, gets refracted and when these diverging rays are produced backwards they appear to meet at a point F (focus) on the left side of the lens.

With the help of a labeled diagram, explain how a concave lens diverges a beam of parallel light rays.Mark the principal axis, optical centre, principal focus and focal length of the concave lens on the diagram.

With the help of a labeled diagram, explain how a concave lens diverges a beam of parallel light rays.
Mark the principal axis, optical centre, principal focus and focal length of the concave lens on the diagram.