Question

find focal length of concave mirror whose radius of curvature is 32cm

Answer 1

as f=r/2 so f=32/2=16
hence 16cm is the focal length of the mirror

Answer 2

Answer: R=32cm

Focal length= 32÷2

=16cm

Explanation:

If the radius of curvature is equal to 32cm then we know that R=2f therefore the foacla length is 32÷2 and that is equal to 16cm