Refraction through lenses

Explain Cartesian sign convention in case of refraction through lens.

Glass Prism|Refraction Of Light Through Glass Prism|Refraction Through Glass Prism|Questions|Home Work|Summary

Refraction Through Glass Slab || Lens Concave Convex With Ray Dliagram

Refraction Through Plane Surface||Critical Angle||Lateral Shift

Refraction Through Prism

Refraction From Curved Surfaces|Questions|Refraction Through Thin Lenses|Types Of Lenses

The image for the converging beam after refraction through the curved surface is formed at

For refraction through a small angled prism, the angle of minimum deviation