The magnication, m, of an image is the ratio of the image height, i, to the object height, 0. Using similar triangles, one can show that it is also equal to the ratio of the image distance to the object distance. f_l E- d 0 m: Note: the negative sign is included as part of the convention to indicate that the real image is inverted. Find a conguration of the mirror and the screen that produces an image of the "4" used as the object that measures 10 mm across. Measure 0', and do and compare the agreement between the two ratios. Repeat this process for an image that is half as large. The "4" on the light source is 20 mm across