Question

if the focal length of a concave mirror is 10cm find the radius of the curvature​

Answer 1

Answer:

We know that, The focal length is the half of the radius ofcurvature. Hence, The radius of curvature of the mirror is 20 cm

Answer 2

Answer:

given focal length of the lens =10cm

we know centre of curvature=f=r/2

10=r/2

20=r

or r=20cm

hope it will help you