Derive lens formula ` [frac(1)(v)-frac(1)(u)=frac(1)(f)]` for a thin convex lens, using diagram for the formation of a real image by convex Lens.

Derive Lens formula for [frac(1)(v)-frac(1)(u)= frac(1)(f)] a thin convex Lens, using ray diagram for the formation of a real image by Convex Lens.

Draw a diagram to illustrate spherical aberration in a convex lens.

By giving sign-conventions, derive the lens formula relating object distance, image distance and focal length for a thin convex lens. Draw a ray diagram to show the formation of image of an object placed between optical centre and focus of a convex lens.

Derive the formula for convex lens stating sign conventions used.

What is minimum distance between an object and the real image formed by a convex lens?

Derive the relation:- frac(mu_2)(v) - frac(mu_1)(u) = frac(mu_2 - mu_1) (R) when light undergoes refraction fromoptically rarer to optically denser medium at curved surface.