 the magnification we know about magnification is, the magnification for a mirror is minus V by U, okay. Produced by a plane mirror is positive 1, what does this mean? The magnification produced by a plane mirror is positive 1, it implies that, point number 1, positive magnification implies that the image is virtual and erect. Second, magnification equal to 1 implies that height of the image is equals to height of the object, clear. So, virtual and erect image also implies that the image is formed inside the mirror.