Question: The focal length $f$ is related to the radius of curvature $r$ of the spherical convex mirror by:
$f=+\frac{1}{2} r$
$f=-r$
$\mathrm{f}=-\frac{1}{2} \mathrm{r}$
$f=r$
Correct Option: 1
Solution:
For convex mirror, focus is behind the mirror.
