réflexionréfraction

réflexionréfraction is a phenomenon that describes the behavior of light or other waves as they encounter the boundary between two different media. This phenomenon encompasses two distinct processes: reflection and refraction. Reflection occurs when a portion of the incident wave bounces back into the original medium. The angle at which the wave strikes the boundary, known as the angle of incidence, is equal to the angle at which it reflects, called the angle of reflection, assuming the boundary is smooth. Refraction, on the other hand, happens when the wave passes through the boundary into the second medium. During refraction, the wave changes direction due to a change in its speed. This change in speed is dependent on the optical properties of the two media, specifically their refractive indices. The degree of bending is quantified by Snell's Law, which relates the angles of incidence and refraction to the refractive indices of the two media. In essence, réflexionréfraction is the combined effect of a wave either bouncing off or passing through an interface, with the latter involving a change in direction and speed. This fundamental principle governs how we see objects, how lenses work, and various optical instruments function.