Total Internal Reflection

The total internal reflection of light is briefly described using a chalkboard diagram. Then a beam of light from the blackboard optics system is projected along the chalkboard and passes into a transparent plastic prism. Total internal reflection is observed as the prism is oriented such that the internal beam reaches the critical angle. Next a transparent rectangular plastic block of relatively high index of refraction compared to air is used to demonstrate that light which is directed toward a corner of the block may not enter one surface and then leave through an adjacent surface. Finally, total internal internal reflection is demonstrated by passing a laser beam through a plastic light pipe.

Equipment:
- Blackboard optics light source
- Power supply
- Connecting wires
- Triangular transparent plastic prism
- Rectangular transparent plastic block
- Plastic light pipe
- Laser

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This video is part of the project "Videos of Physics Demonstrations", which is created by Dr. Galli and Dr. Amiri of Physics Department, Weber State University. To access the full library of the videos, please visit this link: https://www.weber.edu/physics/amiri_galli.html

Links to University and Department:
Weber State University Homepage: https://www.weber.edu/
WSU Physics Department: https://www.weber.edu/physics

Видео Total Internal Reflection канала WSU Physics Videos