Code Number: 6A42.45
Demo Title: Refraction - Broken Rod
Condition: Excellent
Principle: Refraction of Light Waves
Area of Study: Optics
Equipment:
Large Beaker or Square Water Tank, and Plexiglas or PVC Rod.
Procedure:
Place the rod in the water filled beaker at a slight angle and observe the rod appears to be broken at the air/water interface. When doing this in the square tank the effect is most visible when looking into the side from an angle and not directly at 90 degrees.
References:
- Walter Trikosko, "Shooting Fish in a Barrel: A Demonstration of the Refraction of Light", TPT, Vol. 52, # 6, Sept. 2014, p. 367.
- Bruce Illingworth, "Photo of the Month", TPT, Vol. 50, # 8, Nov. 2012, p. 501.
- Hubert Biezeveld, Nienke Elsinga, Floor- Jolijn Harmsen, and Rose Koopman, "Analysis of Pictures Taken with an Underwater Camera", TPT, Vol. 43, # 3, Mar. 2005, p. 158 - 161.
- Denise M. Welt, "Bear to the Left", TPT, Vol. 34, # 7, Oct. 1996, p. 456.
- Haym Kruglak, "Erratum", TPT, Vol. 26, # 6, Sept. 1988.
- Haym Kruglak, "Swimming Pool Optics", TPT, Vol. 25, # 7, Oct. 1987, p. 440.
- R. C. Nicklon, W. C. Connolly, "Rugged Refraction Demonstration", AJP, Vol. 43, # 1, Jan. 1975, p. 112.
- Od-5: Freier and Anderson, A Demonstration Handbook for Physics.
- O-210: "Bent Ruler and Spoon in Glass", DICK and RAE Physics Demo Notebook.
- Robert Ehrlich, "10.2, Finding n Using a Pencil in a Glass of Water", Why Toast Lands Jelly-Side Down, p. 157.
- Pat Murphy, Ellen Macaulay, and the staff of the Exploratorium, "Hey, Who Broke My Straw?"Exploratopia, p. 288.
- Janice VanCleave, "36, Broken Pencil", Teaching the Fun of Physics, p. 58.
- H.J. Press, "Broken Pencil", Giant Book of Science Experiments, p. 208.
- T. D. Rossing, C. J. Chiaverina, "# 1, Bent Pencil", Light Science, Physics and Visual Arts, p. 101.
- Julius Sumner Miller, Q20 & A20, Millergrams I – Some Enchanting Questions for Enquiring Minds, p. 24 & 83.