5N30.60 - Ultraviolet Spectrum

Code Number:
5N30.60
Demo Title:
Ultraviolet Spectrum
Condition:
Excellent
Principle:
Ultraviolet Spectrum
Area of Study:
Electricity & Magnetism
Equipment:
UV Sheeting with Micro Lights of Different Wavelengths, Small or Large Black Lights.
Procedure:

Place the sheeting on the table and turn out the lights.  Use the micro lights and determine which colors or wavelengths of light activate the sheet the best.  You may also use the small or large black lights to activate the whole sheet if desired.

This demonstration is also used to show the ultraviolet part of the electromagnetic spectrum.

References:
  • James Lincoln, "On the Myth of Red Hot and Blue Cold: A Scientific History", TPT, Vol. 60, #6, Sept. 2022, p. 522.
  • James Lincoln and Andrew Davidhazy, "Ultraviolet Photography and Insect Vision", TPT, Vol. 57, #3, Mar. 2019, p. 204.
  • Dan MacIsaac, "UV Camera Physics YouTube Videos", TPT, Vol. 56, #6, Sept. 2018, p. 414.
  • Harvey S. Leff, "More People Should Know Physics Rudiments", TPT, Vol. 53, #4, Apr. 2015, p. 197.
  • R. H. Hardie, E. A. Jones, J. H. Hamilton, and M. C. Hamilton, "Demonstration of Far Ultraviolet Spectral Lines Part II", TPT, Vol. 9, #9, Dec. 1981, p. 618.
  • M. C. Hamilton and J. H. Hamilton, "Demonstration of Far Ultraviolet Spectral Lines Part I", TPT, Vol. 19, #7, Oct. 1981, p. 483.
  • Borislaw Bilash II and David Maiullo, "There's More Than Meets the Eye", A Demo A Day, p. 316.
  • Curt Suplee, "Managing Light for Fun and Profit", Everyday Science Explained, National Geographic, p. 104.
  • W. Bolton, "UltraViolet Radiation", Book 2 - Waves and Particles, Physics Experiments and Projects, 1968, p. 52.
  • W. Bolton, "Distribution of Energy In a Continuous Spectrum", Book 2 - Waves and Particles, Physics Experiments and Projects, 1968, p. 50 - 51.


Disclaimer: These demonstrations are provided only for illustrative use by persons affiliated with The University of Iowa and only under the direction of a trained instructor or physicist.  The University of Iowa is not responsible for demonstrations performed by those using their own equipment or who choose to use this reference material for their own purpose.  The demonstrations included here are within the public domain and can be found in materials contained in libraries, bookstores, and through electronic sources.  Performing all or any portion of any of these demonstrations, with or without revisions not depicted here entails inherent risks.  These risks include, without limitation, bodily injury (and possibly death), including risks to health that may be temporary or permanent and that may exacerbate a pre-existing medical condition; and property loss or damage.  Anyone performing any part of these demonstrations, even with revisions, knowingly and voluntarily assumes all risks associated with them.