Question

If the focal length of a spherical mirror is 15 cm. What is the radius of curvature of the mirror ?​

Answer 1

$\sf \: \red{Answer:-}$

Given :-

R = 15cm

$Focal \: length = \frac{r}{2}$

$\implies\ \frac{15}{2}$

$\implies\ 7.5$

Note :- With a Spehrical mirror this is not the focal length, as rays do not Converse in one Point Depending Upon their distance from the optical axis. But for the smaller mirrors this will work.

Answer 2

Answer:

$Given :-</p><p></p><p>R = 15cm</p><p></p><p>Focal \: length = \frac{r}{2}Focallength=2r</p><p></p><p>\implies\ \frac{15}{2}⟹ 215</p><p></p><p>\implies\ 7.5⟹ 7.5</p><p></p><p>Note :- With a Spehrical mirror this is notthe focal length, as rays do not Conversein one Point Depending Upon theirdistance from the optical axis. But forthe smaller mirrors this will work.</p><p></p><p>$