Homework Help: physics

Posted by edward on Sunday, January 13, 2013 at 3:36pm.

what is the refrevtion of waves? And what are the laws'of refraction? Also about phase change.

physics - Elena, Sunday, January 13, 2013 at 4:35pm
http://en.wikipedia.org/wiki/Refraction
http://en.wikipedia.org/wiki/Snell's_law

http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/phase.html

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