A concave mirror forms image of an object thrice in its size on a screen magnification of a mirror gives information about the size of the image relative to the object it is defined as the ratio of size of image to the size of object it is represented by m m size of object size of image =magnification by mirror gives the information about the nature of the image produced by it.

Describe the nature of image formed 2nd if the object X distance from the pole of mirror then find image distance from the pole 3rd if the radius of curvature of mirror is are then write the relation between object distance image distance and focal length of the mirror give one use of concave mirror