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      Question

      What is the phenomenon of light splitting into colors

      when passing through a prism?  
      A Reflection Correct Answer Incorrect Answer
      B Refraction Correct Answer Incorrect Answer
      C Dispersion Correct Answer Incorrect Answer
      D Diffraction Correct Answer Incorrect Answer

      Solution

      Dispersion is the phenomenon where light splits into its component colors (spectrum) when passing through a prism.   This happens because different colors of light have different wavelengths and refract by different amounts.   This is why a prism can produce a rainbow like spectrum.

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