Tuesday, November 19, 2013

Refraction homework

1.  Find a definition for "index of refraction." 

2.  Look up "Snell's Law".  It will likely have a "sin" of an angle in the equation.  See how much of this makes sense to you.  If you find an equation for it, make sure you have a picture that goes with it.

3.  Play around with this applet (from class):


4.  You have a sense of what happens when light goes from air (or a vacuum) into water (or plastic, glass, etc.).  What do you suppose happens when light goes from water into air?  Draw this out and explain.


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