👉 Refract refers to a process in which light is bent or deflected when it passes through a medium, such as air. Refractive indices are parameters that describe how materials behave under different conditions of incidence and refraction. These indices can be used to determine the behavior of objects at various angles relative to the normal. In physics and engineering, refractometry is the measurement of the angle of deviation or deflection of light from a given direction as it passes through a prism, lens,
