Which of the following relation is true for focal length (f) and the radius of curvature (R)?

R = 3 f

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R = 2 f

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R = 4 f

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R = f

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Solution

The correct option is B R = 2 f
For a mirror with focal length f and the radius of curvature R,
R = 2f.

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Which of the following relation is true for focal length (f) and the radius of curvature (R)?

The correct option is B R = 2 fFor a mirror with focal length f and the radius of curvature R, R = 2f.

The correct option is B R = 2 f
For a mirror with focal length f and the radius of curvature R,
R = 2f.