Compléter completa refraccionVersion en ligne completa la oración con su debido sentido par Carlos Cristancho 1 propagate ray obliquely its frequency speed its mechanically associate phenomenon discussed abbreviated wave behavior analyzing when approaches varying the direction normal propagate or change of refractive discussed When a of light falls at the interface of two media and continues to in the second medium , new approaches distances from the . As we in the wave motion , this is known as refraction of a wave . When a ray light falls obliquely at interface of two media and continues to in the second medium , new direction or distances from the normal . As we in analyzing the wave motion , this phenomenon is known as refraction of a . The geometric of direction manifests itself as a variation of the of light changing means of propagation , keeping the and the wavelength . This is due to a property of matter that we with the index of a material , " n " .