What is the magnification of the images formed by plane mirrors and why? The magnification produced by a plane mirror is +1. What does this mean? The magnification of the image formed by a plane mirror is 1. This is because the size of the image formed is equal to the size of the object. magnification `m=("Height of image"(H_i))/("Height of object"(H_o))` Here, Hi is the height of the image and Ho is the height of the object. Concept: Magnification Due to Spherical Lenses Is there an error in this question or solution? |