Write the formula for a lens connnecting image distance (v), object distance (u) and the focal length (f). How does the lens formula differ from the mirror formula?

The graph between the image distance (v ) and object distance (u) from the convex lens is

What is the difference between lens formula and mirror formula?

The graph in shows the variation of image distance (v) with object distance (u) in case of a lens. Find focal length of the lens. What is the nature of the lens, if image formed is real ? .

The graph between objecct distance u and image distance v for lens is givenn beow. The focal length of the lens is

An object is placed in front of a converging lens at a distance equal to twice the focal length f_(1) of the lens. On the other side of the lens is a concave mirror of focal length f_(2) separated from the lens is a concave mirror of focal length f_(2) separated from the lens by a distance 2(f_(1)+f_(2)) . Light from the object passes rightward through the lens, reflects from the mirror, passes leftward throught the lens, and forms a final image of the object.

The graph shown relationship between object distance and image distance for a equiconvex lens. Then focal length of the lens is

An object is placed at a distance f in front of a concave lens of focal length f. Locate its image.