Question

the focal length of a concave mirror is 18cm.find the radius of curvature​

Answer 1

Hey mate...

answer to ur question is 36

as radius of curvature is double the focal length.

hope it helps ✌

Answer 2

Answer:

Explanation:

As we know the formula

F=R/2

18=R/2

So., R=18 X 2

Therefore R=36

Note:Radius of curvature is always twice the focal length.

Plzzzzz mark it is the BRAINIEST of this question