What Is Mirror Equation? Mirror equation is an equation relating object distance and image distance with focal length. It is also known as the mirror formula . In a spherical mirror : Mirror Equation in Physics is the equation for mirrors that provides the relation between the distance of the object and the image, as well as its focal length. Mirror Equation is helpful in determining object position, image position or focal length given that two of the parameters are given. 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. Learn how to use the mirror formula to calculate the image distance, focal length, and magnification of spherical mirrors. Find examples, derivations, and sign conventions for concave and convex mirrors.
