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When a beam of light that is traveling in air is reflected by a glass surface, there A) a 90 phase change in the reflected

  • When a beam of light that is traveling in air is reflected by a glass surface, there 

  • A) a 90 phase change in the reflected beam. 

  • B) no phase change in the reflected beam. 

  • C) a 180 phase change in the reflected beam.

  • D) a 60 phase change in the reflected beam. 

  • E) a 45 phase change in the reflected beam.

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