Spherical Mirrors | Mirror Equation | Optics | Plus One / UG Physics | Geometrical / Ray Optics

00:00 Title 00:06 Introduction: Reflection at spherical mirrors 00:22 Concave & convex mirrors: key terms 03:42 Focal length of spherical mirrors 06:29 Principal focus, focal plane, power & paraxial rays 09:28 Cartesian sign convention 12:17 Mirror equation: derivation from ray geometry 22:29 Focal point and focal length (f = R/2) 24:20 Conjugate points & extended objects 26:45 Mirror equation using similar triangles 33:07 Gauss's formula: 1/u + 1/v = 1/f 33:31 Lateral magnification 34:57 Summary of key results