What type of mirror would you like to use to see the traffic behind you while driving a car?

A convex mirror (D) is preferred to see the traffic behind while driving. Convex mirrors have an outward-curved reflective surface, which diverges light rays and provides a wider field of view compared to plane or concave mirrors. This wider field of view is crucial for drivers to monitor the traffic behind them and check for approaching vehicles in adjacent lanes. Convex mirrors help reduce blind spots by displaying a larger area, although objects may appear smaller due to the mirror’s shape. This characteristic ensures that the driver can maintain awareness of surrounding vehicles and make safer lane changes or maneuvers. The use of convex mirrors in vehicle side mirrors and rearview mirrors is therefore standard practice, enhancing overall driving safety by improving visibility and reducing the risk of collisions from unseen vehicles. Thus, the convex mirror is optimal for effectively monitoring traffic behind the vehicle while driving.