# Give relation between focal length, object distance and image distance for a small spherical mirror.

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Give relation between focal length, object distance and image distance for a small spherical mirror.

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For a point object or for a small finite object, the focal length of a small spherical mirror is related to object distance and image distance as,

$\frac{1}{f}=\frac{1}{v}+\frac{1}{u}$