Class 10 > Science


The focal length of a mirror is the distance between the____ and the____of the mirror.


As we know, the focal length (f) is the distance from the lens or the mirror to the focal point (F). This is the distance from a lens or mirror at which parallel light rays will meet. Light rays (of a single frequency) traveling parallel to the optical axis of an optical system will meet at the focal point. Light rays that are parallel to each other, but not to the optical axis, will meet on the focal plane.

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