(1) A concave mirror is constructed so that a man at a distance of 26 cm from the mirror sees his image magnified 2.0 times.
(a) What is the radius of curvature of the mirror?
(2) A convex mirror in a department store produces an upright image 0.55 times the size of a person who is standing 250 cm from the mirror.
(a) What is the focal length of the mirror?