1. May 5, 2008 #1

   3instein

   

   1. The problem statement, all variables and given/known data
   
   A slab of glass has a refractive index of 1.3. What will be the speed of light in this glass?
   
   2. Relevant equations
   
   
   
   3. The attempt at a solution
   
   [tex]\frac{sin i}{sin r}=1.3[/tex]
   
   ???

    

   3instein, May 5, 2008
2. 
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3. May 5, 2008 #2

   Chi Meson

   

   Science Advisor

   Homework Helper

   Wrong equation. If you knew what this equation was, youwould know that you cant use it. The "i" and "r" are referring to angles, and are any angles given?
   
   Try the equation that defines the index of refraction, n .

    

   Chi Meson, May 5, 2008
4. Sep 14, 2008 #3

   scivet

   

   light speed in the media = c/n

    

   scivet, Sep 14, 2008
5. Sep 14, 2008 #4

   Redbelly98

   

   Staff Emeritus

   Science Advisor

   Homework Helper

   Welcome to Physics Forums scivet!
   
   We try to give hints to people, rather than giving the answer, when it's a homework question.
   
   But since the question is from last semester, no harm done!

    

   Redbelly98, Sep 14, 2008

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