Describe the formation of image by a concave lens.

Describe the formation of Coal

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.

Describe the formation of a nucleotide.

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.

Describe the formation of real and virtual images by a convex lens with the help of diagrams at different positions of the object.