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If image obtained from concave mirror of focal length f is (1/n)^(th) times of object, then find object distance. |
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Answer» `f/n` `therefore -1/n=(f)/(f-u)` `(because` IMAGE FORMED is SMALL,hence real) `therefore`u-f=nf `therefore` u= nf+f `therefore` u = (n+1)f |
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