Question

what is concave mirror?​

Answer 1

curved mirror is a mirror with a curved reflecting surface. The surface may be either convex or concave. Most curved mirrors have surfaces that are shaped like part of a sphere, but other shapes are sometimes used in optical devices.

Answer 2

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The spherical mirror with inward curved reflecting surface is called concave mirror. A beam of light generally convergent after reflection from such surfaces, hence it is also called convergent mirror.

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