A ray of light passing through the optical centre of a concave lens emerge after refraction will be-

Correct option is B

The correct answer is (b) Without any deviation.
· A ray of light passing through the optical center of a concave lens emerges without any deviation. This is because the optical center is the point where the lens behaves like a thin piece of glass, and the light ray passes through it in a straight line.
Information Booster:
· Through the principal focus : Light rays parallel to the principal axis diverge after passing through a concave lens and appear to come from the principal focus.
· Parallel to the principal axis : Rays passing through the focus before hitting the lens emerge parallel to the principal axis.
· Through the centre of curvature : This term is more commonly associated with spherical mirrors, not lenses.