Which of the following values represents an index of refraction of an actual material?
       
      
                
     
    
    
    
    
    2 answers:
            
              
              
                
                
Answer is D 1.25 I just got the answer right. 
                                
             
                    
              
              
                
                
The correct answer is:
D.  1.25
It has to be more than "1"
 
                                
             
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