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

Which of the following graph represents relation between the image position (v) and object position (u) from the concave lens.

Which of the following graph represents relation between the image position (v) and object position (u) from the concave lens.

The graph between object distance u and image distance v from a convex lens is given .The correct option option , from the following ,is

. The graph between object distance u and image distance v from a convex lens is given .The correct option option , from the following ,is

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 minimum distance between an object and its real image formed by a convex lens is

The minimum distance between an object and its real image formed by a convex lens is