Relationship between the focal length and the radius of curvature of a spherical mirror
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dear friend it brainliest s your answer:+
2f=r.{where f=focal length..,r=radius of curvature..}
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Focal length of a plane mirror is infinity. (A plane mirror can be considered as a spherical mirror of infinite radius of curvature. Focal length is half of radius of curvature and hence it is infinity.
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