In case of a lens, a light ray passes through ___ without undergoing any deviation.
focal length
optic centre
focus
centre of curvature
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.
The ray of light passing through the optical centre of the lens does not suffer any deviation
Why doesn't a ray of light passing through the optical centre of a lens deviate?