Light reflection occurs when light rays bounce off a surface. This happens because light travels in straight lines and when it hits a surface, it can either be absorbed, transmitted, or reflected. The angle at which the light hits the surface, known as the angle of incidence, is equal to the angle at which it reflects away, called the angle of reflection. Different surfaces reflect light differently. For example, a smooth surface like a mirror reflects light very well, creating a clear image, while a rough surface like paper scatters light, resulting in a less defined reflection. This principle is essential in various applications, including optics and photography.