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The mirror formula - class-XI
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QuestionClick to flip
The relation among $u$, $v$ and $f$ for a mirror is:
AnswerClick to flip back
A
$f=\dfrac{uv }{u + v}$
💡 Explanation:
As we know,
$\dfrac{1}{f}=\dfrac{1}{v}+\dfrac{1}{u}$
$\dfrac{1}{f}=\dfrac{u+v}{uv}$
${f}=\dfrac{uv}{u+v}$
hence,option A is correct.