A flashlight uses a small lightbulb placed in front of a converging mirror. The light from the bulb should reflect from the mirror and emerge as a tight beam of light--a series of parallel rays. Where should the bulb be placed relative to the mirror?A) The bulb should be at a distance twice as short as the focal length of the mirror. B) The bulb should be at the focal point of the mirror.
C) The bulb should be at a distance twice as long as the focal length of the mirror.