TIR - Two Liquids

 

Code Number: 6A44.53

Demo Title: Total Internal Reflection - Two Liquids

Condition: Excellent

Principle: Critical Angle and Total Internal Reflection

Area of Study: Optics

Equipment:

Wave machine bodies, Waves in a Bottle.

Procedure:

The interface at the boundary of two immiscible liquids will appear to be a mirror at certain viewing angles.  Use a laser to show that there is total internal reflection at those angles.

References:

  • Robert Ehrlich, "P.6, Total Internal Reflection at a Two-Liquid Interface", Turning The World Inside Out, p. 180.