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Mirror Formula
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Which of the ...
Question

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

A
R = 3 f
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B
R = 2 f
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C
R = 4 f
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D
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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