Section 18.3 Applications of Lenses

Practice Test
      
  1.In nearsightedness, the image is focused __________.  
  a.   directly on the retina  
  b.   in front of the eye  
  c.   beyond the retina  
  d.   in front of the retina  
  Hint    
      
  2.Farsightedness can be corrected with a __________.  
  a.   plane lens  
  b.   concave lens  
  c.   parabolic lens  
  d.   convex lens  
  Hint    

 
   
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