6A20.35 - Mirrors - Image of a Quarter - Optic Mirage

Code Number:
Demo Title:
Mirrors - Image of a Quarter - Optic Mirage
Concave, Convex Mirrors, Focal Lengths
Area of Study:
Optic Mirage in Wooden Box - (Quarter Demo), Coins and Small Animal Figures.

The quarter demo should need no advanced preparation.  Clean the mirrors when necessary and position the quarter so that the formed image is in the center of the hole.

  • Thomas B. Greenslade Jr., "A Scientific Mystery", TPT, Vol. 57, #4, Apr. 2019, p. 221.
  • Maria Alicia Caussat, Hector Rabal, Mikiya Muramatsu, "The Levitating Buddha: Constructing a Realistic Cylindrical Mirror Pseudo Image", TPT, Vol. 44, # 7, Oct. 2006, p. 443. 
  • Heidi Strahm Black, "Trick of the Trade - The Real Image",  TPT, Vol. 36, #2, p. 96, Feb. 1998.
  • Terrence P. Toepker, 'Spherical Mirror Images of Dynamic Objects", TPT, Vol. 30, #4, Apr. 1992, p. 252.
  • Andrzej Sieradzan, "Teaching Geometrical Optics with the 'Optic Mirage'", TPT, Vol. 28, #8, Nov. 1990, p. 534.
  • R.D. Edge and Edwin R, Jones, Jr., "Optical Illusions", TPT, Vol. 22, #9 , Dec. 1984, p. 591.
  • R. Stuart Mackay, "Shine a Flashlight on an Image", AJP, Vol. 46, #3, Mar. 1978, p. 297.
  • Oc-7: Freier and Anderson, A Demonstration Handbook for Physics.
  • O-175: "Confocal Mirrors", DICK and RAE Physics and Demo Notebook.
  • Jearl Walker, "6.97, Sister Sapphire", The Flying Circus of Physics Ed. 2, p. 280.
  • Christopher P. Jargodzki and Franklin Potter, "45, Lighting an Image?", Mad About Physics, p. 16, 167.
  • Christopher P. Jargodzki and Franklin Potter, "44, Floating Image", Mad About Physics, p. 15, 166.
  • Raymond Bruman, "Parabolas", Exploratorium Cookbook I, p. 15.1 - 15.2.

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