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April 20, 2015

April 20, 2015

Posted by **ceasar** on Thursday, November 10, 2011 at 4:51am.

- physics -
**drwls**, Thursday, November 10, 2011 at 4:58amNair*sin30 = Nwater*sin22

(It's called Snell's law).

Nair = 1.0003 (or just use 1.00)

Solve for Nwater

You should get about 1.33 for Nwater

The speed of light in water is

c/Nwater, or about 3/4 c

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