By giving assumptions made, derive the lens maker formula for a double convex lens.

Derive lens maker's formula for a thin concave lens.

With the help of suitable diagram, sign conventions and assumptions, derive lens Maker's formula for a convex lens.

By stating sign conventions and assumptions made,derive mirror formula for a concave mirror.

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 mirror formula for a convex mirror.