Question

radius of curvature of a spherical mirror is30cm .it's focal length is_cm​

Answer 1

Answer:

its 15 cm..as the focus lie midway between the pole and radius of curvature

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Answer 2

Answer:

The focal length of a concave spherical mirror is half the radius of curvature in front of the mirror's center. So the focal length of your mirror would be -15 cm

Explanation:

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