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ERIC Number: EJ787029
Record Type: Journal
Publication Date: 2008-Mar
Pages: 5
Abstractor: Author
Reference Count: 10
ISSN: ISSN-0031-9120
Investigative Studies of Refractive Indices of Liquids and a Demonstration of Refraction by the Use of a Laser Pointer and a Lazy Susan
Wong, Siu Ling; Mak, Se-yuen
Physics Education, v43 n2 p198-202 Mar 2008
We describe the design of a simple homemade apparatus for the measurement of the refractive indices of liquids and demonstration of refraction. A circular transparent plastic tank and a lazy Susan are held concentrically. A laser pointer is mounted on the lazy Susan with its laser beam pointing radially through the centre of the plastic tank. Experimental values obtained for the refractive indices of various liquids agree reasonably well with the literature values. A number of investigative studies suitable for high school students to undergraduates are suggested. (Contains 6 figures and 1 table.)
Institute of Physics Publishing. The Public Ledger Building Suite 929, 150 South Independence Mall West, Philadelphia, PA 19106. Tel: 215-627-0880; Fax: 215-627-0879; e-mail:; Web site:
Publication Type: Guides - Classroom - Teacher; Journal Articles; Reports - Descriptive
Education Level: High Schools; Higher Education
Audience: Teachers
Language: English
Sponsor: N/A
Authoring Institution: N/A