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Spherical Mirror

  • Spherical mirror: A piece of a glass sphere.
  • If the inner side is polished, then the spherical mirror is a concave mirror. If the outer surface is polished, it is a convex mirror.
  • The focal length of a spherical mirror is equal to R/2, where R is the radius of the sphere from which the mirror is taken (the radius of curvature).
  • The straight line from the center of the sphere to the mid point of the mirror is called the principal axis.
  • The mail mirror equation: 1/f = 1/p + 1/q.

Spherical Mirror

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AP Physics B