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?

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 object distance u and image distance v for a lens is given below. The focal length of the lens is. .

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

The object distance u, image distance v and focal length 'f' for a spherical mirror are related as

If the focal length of a lens fis in cm, then write the formula of power of lens.

Choose the correct alternative corresponding to the object distance 'u', image distance 'v' and the focal length 'F' of a converging lens from the following . The average speed of the image as the object moves with the uniform speed from distance (3F)/(4) to (F)/(2) is greater than the average speed of the image as the object moves with same speed from distance (F)/(2) "to" (F)/(4) The minimum distance between a real object and its real image in case of a converging lens is 4F where F is its focal length.

Choose the correct alternative corresponding to the object distance 'u', image distance 'v' and the focal length 'F' of a converging lens from the following . The average speed of the image as the object moves with the uniform speed from distance (3F)/(4) to (F)/(2) is greater than the average speed of the image as the object moves with same speed from distance (F)/(2) "to" (F)/(4) The minimum distance between a real object and its real image in case of a converging lens is 4F where F is its focal length.