Graph of position of image vs position of point object from a convex lens is shown. Then, focal length of the lens is

Find the distance of an object from a convex lens if image is two times magnified. Focal length of the lens is 10cm

Find the distance of an object from a convex lens if image is two times magnified. Focal length of the lens is 10cm

Find the distance of an object from a convex lens if image is two times magnified. Focal length of the lens is 10cm

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

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