Len's Formula

Thin Lens Formula

Lens Formula And Sign Convention

Image Formation By Concave Lens|Sign Convention For Spherical Lenses|Lens Formula|Magnification (m)|OMR

Examples on Spherical Surface||Lens||Introduction||Types & names OF Lenses||Basic Definition||Lens Formula

Rules For Obtaining Images Formed By Concave Lenses |Lens Formula|Magnification Produced By Lenses |Practice Exercise|Power Of A Lens|Power Of A Combination Of Lenses|Summary

Introduction|Reflection of Light|Rules for Ray Diagrams|Reflection From Concave Mirrors|Reflection From Convex Mirrors|Questions|Refraction of Light|Law of Refraction|Image Formation|Lens Formula & Magnification

Lens formula derivation and problems

Assertion Lens formula can be applied only for thin lenses. Reason For thick lenses one cannot find image position.

Lens-Maker's Formula|Magnification|Rules For Image Formation|OMR