Question

Find the focal length of a mirror
whose radius of curvature is 32 cm
​

Answer 1

Answer:

16

Explanation:

We know R=2F 32=2F F=16 cm Hope it helps please mark my answer the brainliest and follow me.

Answer 2

$\rule{200}{4}\rule{200}4$

$\mathfrak \orange{Given} \begin{cases}\green{\rm Radius\;of\;curvature=32 cm}\\\\\rm\purple{Type\;of\;mirror=Convex\;mirror}\end{cases}$

$\rule{200}{4}\rule{200}4$

$\mathfrak\red{To\ find:}\begin{cases}\\\rm\pink{Focal\; length=?}\\\\\end{cases}$

$\rule{200}{4}\rule{200}4$

$\small \sf We \; know\;that\\\\\dagger\boxed{\bf \blue{F=\dfrac{R}{2}}}$

Where

• F : focal length
• R : radius of curvature

$\sf\longrightarrow F = \dfrac{\cancel{32}}{\cancel2} \\\\\large\bigstar \underline{\underline{\boxed{\bf \red{F} \pink{=}\green{16}}}}$

$\rule{200}{4}\rule{200}4$

$\mathfrak{\pink{More \;info:}}\begin{cases}\rm\green{\dfrac{1}{f}=\dfrac{1}{v}-\dfrac{1}{u}}\\\\\rm \purple{m=\dfrac{-v}{u}}\\\\\rm\red{F=\dfrac{R}{2}}\end{cases}$

$\rule{200}{4}\rule{200}4$