Question

If the focal length of a concave mirror is 15 cm,then find the radius of curvature of the mmirror​

Answer 1

Answer:

thanks for free points

Answer 2

$\star\small\sf\underline\blue{Given:-}$

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• Focal length of a concave mirror is 15 cm.

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$\star\small\sf\underline\blue{Find \: Out:-}$

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• Required radius of curvature of the mirror = ?

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$\star\small\sf\underline\blue{Solution:-}$

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$\footnotesize\bold{\underline{\underline{\sf{\red{Formula\: Used:-}}}}}$

${\underline{\boxed{\sf{Radius = 2 × Focal\: length }}}}$

$\footnotesize\bold{\underline{\underline{\sf{\red{Putting\: the \:values:-}}}}}$

$\leadsto \sf \: Required\: radius = 2 \times 15 \\ \\ \leadsto \sf \: Required\: radius = 30 \: cm$

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$\star\small\sf\underline\blue{AnswEr:-}$

• Required radius of curvature of the mirror is 30 cm.