(3) TIR causes a portion of the light to be refracted and the rest to be reflected
Explanation:
Total internal reflection is the reflection of a light ray completely within a medium for example glass or water which bounces back after reflecting from the surrounding surfaces into the medium. When the incident angle is more than an certain limiting angle, called the critical angle, the phenomenon is called total internal reflection.
In total internal reflection none of the portion of the incident light gets refracted, it gets only reflected multiple times within the medium.
