Spherical Mirror Equation
Find the image distance, magnification and image type for a concave or convex mirror, free online.
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The mirror equation is 1/f = 1/d₀ + 1/dᵢ and the magnification is m = −dᵢ/d₀. Use a positive focal length for a concave (converging) mirror and a negative one for a convex mirror. A negative image distance means a virtual image behind the mirror.