A convex mirror of focal length f produced an image `(1//n)^(th)` of the size of the object. The distance of the object from the mirror is

A concave mirror of focal length f produces a real image n times the size of the object. The distance of the object from the mirror is

A concave mirror of focal length f produces a real image n time the size of the object.What is the distance of the object from the mirror.

A concave lens of focal length f produces an image (1//n) times the size of the object. The distance of the object from the lens is :

A concave mirror of focal length f produces a real image n times the size of the object. What is the distance of the object from the mirror?