posted by star .
an object is placed 10 cm from a concave spherical mirror whose radius of curvature is 12 cm. What is the distance of image
b) 10 cm
The focal length is f = R/2 = 6 cm.
1/do + 1/di = 1/10 + 1/di = 1/6
1/di = 1/6 - 1/10 = 5/30 -3/30
image distance di = 15 cm
object distance do = 10 cm