The mirror formula is applicable for both, plane mirrors and spherical mirrors (convex and concave mirrors ). The mirror formula derivation is provided here so that students can understand the concept of the topic in a better way. What is Mirror Formula ? The Mirror Formula (also referred to as the mirror equation) gives us the relationship between the focal length (f), the distance of the object from the mirror (u) and the distance of the image from the mirror (v). The mirror formula for a concave mirror is given below. Using the mirror equation to solve for u and v allows us to determine the magnification (m ) of the object using the equation below. The size of the image as compared to the object is related to the magnification. One of the most common formulas in optics is the mirror formula or spherical mirror formula . The mirror formula is the relationship between the distance of the object represented as u and the distance of the image represented as v, as well as the focal length of the mirror given as f.
