[" For a given lens,the magnification was "],[" found to be twice as larger as when the "],[" object was "0.15m" distant from it as when "],[" the distance was "0.2m" .The focal length of "],[" the lens is "]

For a given lens, the magnification was found to be twice as large as when object was 0.15 m distant from it as when the distance was 0.2 m. The focal length of the lens is

For a given lens, the magnification was found to be twice as large when the object was 0.15 m distance from it as when the distance was 0.2 m. The focal length of the lens is

For a given lens, the magnification was found twice as large when as when the object was 0.15 m distance from it as when the distance was 0.2 m. Find power of the lens.

For a given lens, the magnification was found twice as large when as when the object was 0.15 m distance from it as when the distance was 0.2 m. Find power of the lens.

For a given lens, the magnification was found to be twice as large as object being 0.15 m distant from it as when the distance was 0.2 m. The focal length of lens is

The focal length of a lens is -0.4m. The lens is

The distance between an object and its real image formed by a lens is D. If the magnification is m , the focal length of the lens is

The distance between the object and real image formed by a lens is D . If the magnification is m , then the focal length of the lens is given by :

For a certain lens, the magnification of an object when placed at a distance of 0.15 m is twice of the magnification produced, when the distance was 0.2 m. If in both the situations a real image is formed, then what is the focal length (in cm ) of the lens?