Question

if the focal lenght of the mirror is 3 then find 5he radius of mirror...​

Answer 1

Answer:

HeYa...

$f = \frac{1}{r} \\ \\ 3 = \frac{1}{r} \\ \\ r = \frac{1}{3}$

hence, radius is 1/3.

I hOpe It HeLpS Ya!

✌️

Answer 2

it should be 6 cm because radius is twice the focal length