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.

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.

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 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.

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

A convex lens of focal lenght 20 cm is placed coaxially wih a convex mirror of radius of curvature 20 cm.the two are kept at 15 cm apart.A point object lies 60 cm in front of the convex lens.Draw a ray diagram to show the formation of the image by the combination.Determine the nature and position of the image formed.