Question

find a focal legth of a convex mirror whose radius of culvature is 30 cm​

Answer 1

Answer:

15 cm

Explanation:

f=r/2

f=30/2=15

Therefore focal length of the convex mirror is 15cm

Answer 2

Explanation:

Radius of curvature R =30cm

Radius of curvature R = 2* focal length

F = R/2

= 30/2

=15