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ilikebigbutts ilikebigbutts
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11 years ago
a. For colorless glass, the light speed is higher than in a vacuum; for colored glass, the light speed is lower than in vacuum.  
  b. It cannot be judged because we don?t know what kind of glass it is.  
  c. There is no difference between the speed of light in glass and in a vacuum.  
  d. The speed of light in glass is lower.  
  e. The speed of light in glass is higher.
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Rkumar2577Rkumar2577
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11 years ago
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