Shaving/makeup mirrors typically have one flat and one concave (magnifying) surface. You find that you can project a magnified image of a lightbulb onto the wall of your bathroom if you hold the mirror 2.0 m from the bulb and 4.0 m from the wall.
Part A. What is the magnification of the image?
Part B. Is the image erect or inverted?
Part C. What is the focal length of the mirror?