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4 answers

A Prism or a jewel cut block of glass (cheapest).

2006-09-10 16:12:20 · answer #1 · answered by zahbudar 6 · 0 0

Prism or "diffraction grating." A CD will act just fine as a reflective diffraction grating.

2006-09-11 15:18:46 · answer #2 · answered by Anonymous · 0 0

A prism..
Red
Orange
Yellow
Green
Blue
Indigo
Violet

2006-09-11 00:57:20 · answer #3 · answered by Anonymous · 0 0

prism

2006-09-10 23:14:29 · answer #4 · answered by bhcky79 3 · 0 0

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