Reflection of light by curved surfaces; Images formed by spherical mirrors, centre of

curvature, principal axis, principal focus, focal length, mirror formula (Derivation not

required), magnification.

Refraction; Laws of refraction, refractive index.

Refraction of light by spherical lens; Image formed by spherical lenses; Lens formula

(Derivation not required); Magnification. Power of a lens.

Functioning of a lens in human eye, defects of vision and their corrections, applications

of spherical mirrors and lenses.

Refraction of light through a prism, dispersion of light, scattering of light, applications in

daily life (excluding colour of the sun at sunrise and sunset).