Question

what is the radius of curvature and focus of a plane mirror​

Answer 1

Answer:

As the radius of the sphere is infinite, so the radius of the curvature of the plane mirror is infinite. Now as we know that the focal length of any mirror is twice the radius of curvature so the focal length of the plane mirror is also infinite. Hence the radius of the curvature of the plane mirror is infinite.

Explanation:

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Answer 2

Answer:

As the radius of the sphere is infinite, so the radius of the curvature of the plane mirror is infinite. Now as we know that the focal length of any mirror is twice the radius of curvature so the focal length of the plane mirror is also infinite. Hence the radius of the curvature of the plane mirror is infinite.