If the Radius of curvature of a concave mirror is 60 cm, what is its focal length?

120 cm

30 cm

80 cm

60 cm

If the Radius of curvature of a concave mirror is 60 cm, what is its focal length is 30 cm.

The Formula for the Radius of Curvature R= 1/K.

AGM 25-12-2022