Optics demonstration with student eyeglasses using the inquiry method

Mark C James

Research output: Contribution to journalArticlepeer-review


A favorite qualitative optics demonstration I perform in introductory physics classes makes use of students' eyeglasses to introduce converging and diverging lenses.1 Taking on the persona of a magician, I walk to the back of the classroom and approach a student wearing glasses. The top part of Fig. 1 shows a glasses-wearing student who is farsighted in her left eye and has a slight astigmatism in her right eye.

Original languageEnglish (US)
Pages (from-to)357-359
Number of pages3
JournalPhysics Teacher
Issue number6
StatePublished - Sep 2011

ASJC Scopus subject areas

  • Education
  • General Physics and Astronomy


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