BB Optics - Refraction Block
Refraction with Block and Laser
Refraction with Block and Laser

 

Code Number: 6A42.10

Demo Title: Blackboard Optics - Refraction Block

Condition: Excellent

Principle: Refraction of Light Waves

Area of Study: Optics

Equipment: 

Blackboard Optics Kit 12 VDC Power Supply, and Dry Erase Blackboard on Wheels.

Procedure:

The blackboard optics unit is pretty self explanatory, however there is a pamphlet on its use with the unit and in the file. Do Not run the power supply for the light bulb over 12 volts.

References:

  • Wael A. Ramaden, Ahmed Salah El-Tawargy, "An Economic, Compact Apparatus to Verify the Laws of Reflection and Refraction", TPT, Vol. 62, #6, Sept. 2024, p. 520.
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  • Roger Blickensderfer, "Systematic Errors and Graphical Extrapolation", TPT, Vol. 23, # 9, Dec. 1985, p. 545 - 547.
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  • J. Neuberger, "Measurement of Index of Refraction", TPT, Vol. 18, # 1, Jan 1980, p. 54.
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  • Jose-Phillippe Perez, "Comment on 'D. Drosdoff, A. Widom, "Snell's Law From an Elementary Particle Viewpoint", AJP, Vol. 73, # 9, Sept. 2005, p. 840.
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  • J. West, "Comment on 'Fermat's Principle and the Variational Analysis of an Optical Model for Light Propagation Exhibiting a Critical Radius' by M. Marklund, D. Anderson, F. Cattani, M. Lisak, and L. Lundgren, AJP, Vol. 70, # 7, July 2002, p. 680", AJP, Vol. 71, # 7, July 2003, p. 730.
  • Harald Helfgott, Michel Helfgott, "A Noncalculus Proof that Fermat's Principle of Least Time Implies the Law of Refraction", AJP, Vol. 70, # 12, Dec. 2002, p. 1224.
  • Od-2, 3:  Freier and Anderson,  A Demonstration Handbook for Physics.
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  • "Snell's Law Protractor", Zeal Educational Services Pvt. Ltd.
  • Joseph Frick, "#163 - Experiments on Refraction", Physical Technics: Or, Practical Instructions for Making Experiments in Physics and the Construction of Physical Apparatus with the Most Limited Means", p. 189.
Bending Light
Zeal Education
6a42.10 - Bending Light.pdf
University of Maryland Physics Department QOTW Question #100
University of Maryland Physics Department QOTW Answer #100
Video Credit: Jonathan M. Sullivan-Wood
6A42.10 - BB Optics - Refraction Block