Question

name the point at lens where a ray of light while passing does not undergo​

Answer 1

Answer:

The middle portion of the lens is comparatively flat and there is a point on the principal axis and inside the sphere through which all the undeviated rays pass. ... For thin lenses, the refraction inside the lens is negligible and therefore we represent the ray passing through the optic centre as a straight line.

Answer 2

Answer:

A ray of light passing through of the lens goes Undeviated from the lens