Code Number: 6A44.43

Demo Title: Fiber Optics - Acrylic Tube

Condition: Excellent

Principle: Critical Angle and Total Internal Reflection

Area of Study: Optics

Equipment:

Laser, notched circular tube.

Procedure:

Set the laser up at an angle of 90 degrees to the notch. When observed the laser beam should spiral down through the Plexiglas tube.

References:

B. G. Eaton, "Internal Reflection Demonstration", AJP, Vol. 53, #2, Feb. 1985, p. 182.
O-255: "Fiber Optics - Rod, Ball & Cyl.", DICK and RAE Physics Demo Notebook.

6A44.43 - Fiber Optics - Acrylic Tube

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