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Question

The relation between focal length F and radius of curvature R of a spherical mirror of small aperture is given by

A
F=R2
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B
F = 2R
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C
F=R4
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D
F = R
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Solution

The correct option is A F=R2
For spherical mirror of small aperture, F=R2
Hence, the correct answer is option (a).

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