Skip to main content
\(\require{cancel}\)
Physics LibreTexts

2: Geometric Optics and Image Formation

Thumbnail: Rays reflected by a convex spherical mirror: Incident rays of light parallel to the optical axis are reflected from a convex spherical mirror and seem to originate from a well-defined focal point at focal distance f on the opposite side of the mirror. The focal point is virtual because no real rays pass through it.