Which type of mirror is used in headlights of vehicles?

Concave mirrors (C) are used in the headlights of vehicles. These mirrors have a reflective surface that curves inward, similar to the inside of a sphere. When a light source is placed at the focal point of a concave mirror, the mirror reflects the light rays into a parallel beam. This property is essential for vehicle headlights, as it enables the light to be directed forward in a concentrated and focused manner, providing better illumination of the road ahead. The use of concave mirrors ensures that the light is not scattered in all directions, which enhances visibility for the driver and improves safety during nighttime driving. By focusing the light into a powerful, straight beam, concave mirrors help drivers see further distances and identify obstacles or hazards on the road more effectively.