What is the focal length of a makeup mirror that produces a magnification of 1.50 when a person’s face is 12.0 cm away?
Some heating coils are located 27.3 cm from the vertex of a concave mirror, along the mirror’s optical axis. The heating element radiates 1.50 kW of infrared radiation and has an area of 100 cm2. Half of the radiated power is reflected and focused by the mirror. If the mirror has a magnification of , what is the intensity of infrared radiation projected by the mirror onto a person standing 3.00 m from the mirror’s vertex, along the mirror’s optical axis?
A shopper standing 5.00 m from a convex security mirror sees his image magnified by a factor of 0.250.
What is the focal length of the mirror?
What is the mirror’s radius of curvature?