OPTICS - GEOMETRICAL OPTICS - REFRACTIVE INDEX NC State University Faculty Access

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Cheshire Cat
# 6A40.30


Description: Show how a glass cat seems to disappear when immersed in a liquid of the same index of refraction of the glass. The demo room uses Wesson vegetable oil because of its close index to Pyrex. NOTE: This demo uses pyrex glass items until the "cat" can be mended (as he's a bit broken now...)

Purchased/Built: built

Setup Time: 10 min

Quant. in Demo Room: 1

Demo References
The Video Encyclopedia of Physics Demonstrations Disc 22-10 Place an eyedropper in a liquid with an index of refraction matched to the glass.

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