the radius of curvature of a spherical mirror is 20 cm what is the focal length
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Given, radius of curvature = 20 cm
We know, focal length = Radius/2
Therefore,Focal length = 20/2 = 10cm
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HEY FRIEND HERE IS UR ANSWER ,
Radius of curvature (R) = 20 cm
Radius of curvature of the spherical mirror = 2 × Focal length (f) R = 2f
f= R/2 = 20 / 2 = 10
Therefore, the focal length of the spherical mirror is 10 cm.
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