Study the following ray diagrams:
The diagrams showing the correct path of the ray after passing through the lens are
I, II and III
Ray diagrams (I), (II) and (III) are correct.
The light rays passing through the optical centre of lens remain undeflected.
The light rays parallel to principal axis passes through the second focus of the lens
The light rays passing through the first focus become parallel to the principal axis after passing through the lens