Question

Distinguish between the focal point and the focal length of a mirror.

Answer 1

Focal length (shown in red) is the distance between the center of a convex lens or a concave mirror and the focal point of the lens or mirror — the point where parallel rays of light meet, or converge.

Answer 2

focal length is the distance between the centre of a convex length of a concave mirror and the focal point of lens or mirror the point where parallel rays of light meets or converge

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