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What will be the focal length if fits curved surface is mirrored?

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What will be the focal length if fits curved surface is mirrored?

(a) R/μ

(b) 2R/μ

(c)  2Rμ

(d)  R/2μ

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1 Answer

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Best answer

Correct option  (d)  R/2μ

Explanation :

- 1/fer = 2(1/fL) - 1/fm

=  2 (n -1)(1/R) + 2/R

ter = R/Rμ

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