An object is placed 15 cm from
(a) a converging mirror, and
(b) a diverging mirror, of radius of curvature 20 m. Calculate the image position and magnification in each case.
(a) Object distance = 15cm
Radius of curvature = 20m
F = R/2 = 20/2 = 10m
Using mirror formula for concave lens,
Image distance, v = -30 cm
The image is formed 30 cm in front of converging mirror;
Magnification, m = v/0u = -2
(b) Object distance = 15cm
Radius of curvature = 20m
F = R/2 = 20/2 = 10m
Using mirror formula for convex lens,
Image distance v = + 6 cm
The image is formed 6 cm behind the diverging mirror ;
Magnification, m = v/u =0.4