What happens when a ray of light passes through the optical centre of a lens?
no light ray can pass through the optical centre
it passes through the lens undeviated.
it becomes parallel to principle axis
none of the above
light passes undeviated
A light ray passing through the optic centre of a convex lens will pass through ___ after refraction.
A ray of light after refraction through a lens emerges parallel to the principal axis of the lens. The incident ray passes through :
(a) its optical centre
(b) its first focus
(c) its second focus
(d) the centre of curvature of the first surface.
We use very thin lens, so that a light ray passing through its optical centre goes un-deviated.