Question

Explain the meaning of the terms focus and focal length in case of convex mirror with help of a suitable diagram

Answer 1

Focus: It is the point on the principal axis, where the light rays parallel to the principal axis will converge (in the case of a concave mirror) or appear to diverge from (in the case of a convex mirror) after reflection from the mirror. Focal Length: The distance between the pole and the focus of the mirror.

Answer 2

Focus: It is the point on the principal axis, where the light rays parallel to the principal axis will converge (in the case of a concave mirror) or appear to diverge from (in the case of a convex mirror) after reflection from the mirror. Focal Length: The distance between the pole and the focus of the mirror.

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