A diverging mirror of radius of curvature 40 cm forms an image which is half the height of the object. Find the object and image positions.
Radius of curvature , R = 40 cm
F = R/2 = 40/2 = 20 cm
Magnification, m = 1/2
v/u = 1/2
such that u = 2v
Using the mirror formula,
Object distance = 20cm
And the image distance = 10cm
behind the mirror