Section 16.2 The Wave Nature of Light

Practice Test
      
  1.How do the frequencies of red and violet light compare?  
  a.   They cancel each other out.  
  b.   Violet is higher.  
  c.   Violet is shorter.  
  d.   They are identical.  
  Hint    
      
  2.To make red light white, add __________.  
  a.   magenta light  
  b.   green light  
  c.   yellow light  
  d.   cyan light  
  Hint    
      
  3.When you wear polarized sunglasses, the Sun's light intensity to your eyes is __________.  
  a.   reduced by 1/4  
  b.   completely eliminated  
  c.   cut in half  
  d.   doubled  
  Hint    
      
  4.Blue light, which is bent more than red light in a prism, has __________.  
  a.   a shorter wavelength  
  b.   a lower frequency  
  c.   a faster speed  
  d.   a longer wavelength  
  Hint    
      
  5.Red and blue light make __________.  
  a.   magenta  
  b.   indigo  
  c.   violet  
  d.   purple  
  Hint    
      
  6.A polarizer and analyzer will block all light if they are at __________ to each other.  
  a.   30° angles  
  b.   180° angles  
  c.   parallel angles  
  d.   right angles  
  Hint    
      
  7.A second prism will change a spectrum back into white light. This shows that __________.  
  a.   white light is composed of colors  
  b.   light travels at a constant speed  
  c.   prisms distort images  
  d.   prisms are transparent  
  Hint    
      
  8.A primary light color is a __________.  
  a.   primary pigment color  
  b.   tertiary pigment color  
  c.   secondary pigment color  
  d.   secondary light color  
  Hint    
      
  9.Light behaves as __________.  
  a.   a wave only  
  b.   a particle only  
  c.   neither a particle nor a wave  
  d.   a particle and a wave  
  Hint    
      
  10.Based on Figure 16-11, which of the following wavelengths would most likely be yellow light?  
  a.   480 nm  
  b.   550 nm  
  c.   650 nm  
  d.   400 nm  
  Hint    
      
  11.When two dyes are mixed together, they make a black dye. These pigments are __________.  
  a.   secondary  
  b.   complementary  
  c.   black and white  
  d.   primary  
  Hint    
      
  12.Why does a polarizing filter on a camera block reflections?  
  a.   Light is polarized by reflection.  
  b.   Light is polarized by refraction.  
  c.   Only mirrors can polarize light.  
  d.   Polarizing filters contain both a polarizer and an analyzer.  
  Hint    

 
   
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