A rear view mirror is a reflective device mounted inside a vehicle, allowing the driver to see the area behind the car. It helps improve safety by providing a clear view of approaching vehicles and obstacles, enabling better decision-making while driving. There are two main types of rear view mirrors: flat and convex. Flat mirrors offer a true-to-size reflection, while convex mirrors provide a wider field of view, making it easier to spot vehicles in blind spots. Many modern vehicles also feature adjustable mirrors and integrated technologies, such as backup cameras and blind spot monitoring systems.