Question

What is tge focal lenght of a convex mirror whose radius of curvature is 50cm?

Answer 1

Radius of Curvature (R) = 2X Focal length (f)
50 = 2Xf
f= 50/2
f= 25 cm

Answer 2

Answer:

$Focal \: length \: = \: \frac{Radius \: of \: curvature}{2} \\ or \: f = \frac{r}{2} \\ \\ f \: = \: \frac{50}{2} \\ \\ f = 25cm \\ \\ Thus, \: the \: focal \: length \: of \: convex \: mirror \: is \: 25cm.$