👉 In physics, a system is said to be unrefractive if it does not scatter light. This means that the beam of light emitted by an object is completely reflected back into its original direction, regardless of the angle of incidence or reflection. For example, consider a prism that separates light from one color and another in a two-dimensional plane. If the incident angle is less than 90 degrees (i.e., it is less than 45 degrees), then the beam will be completely
