Question

the radius of curvature of spherical mirror is 30 cm find focal length​

Answer 1

$heya \: mate$

We know that,

F=R/2

F=30/2

Hence, focal length=15 cm

Answer 2

Given -: Radius of curvature = 30 cm

To find -: focal length

solution -: R = 2f

f= R/2

f=30/2

f= 15 cms