|MadSci Network: Physics|
Why does the spectrum change when viewed through a water prism? I set up a water prism in my class, and put various black and white cards on a stand about 5 feet away on a long table. When viewing the spectrum, on top of white it appears as yellow through red, but when looking above black it appears violet through blue. I cannot find out the scientific reason for this difference. Can you help? I teach gifted students, and this is from a fifth grade optics unit. Thank you! Jill Dembsky
Re:Why does the spectrum change when viewed through a water prism?
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