A man holds a spherical shaving mirror of radius of curvature 60 cm at a distance of 15 cm, from his nose. Find the position of image, and calculate the magnification.
Radius of curvature, R=-60cm
F = R/2 = 60/2 = 30cm
f=-30cm, u=-15cm
We have
So, the image is formed 30 cm behind the mirror and the magnification is +2.
30