LIGHT: (reflection, refraction, mirrors, lenses, diffraction)

– s. mirrors that converge the light (caved inward) Convex – s. mirrors that diverge the light (bent outward) C – center of curvature - center of the sphere. R – radius of curvature – radius of the sphere. f – Focal Length – If make a very good ray diagram, one will notice f = 1/2R, half the radius. ................
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