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      Question

      The photoelectric effect is best explained by:

      A Wave theory of light Correct Answer Incorrect Answer
      B Particle theory of light Correct Answer Incorrect Answer
      C Quantum mechanics Correct Answer Incorrect Answer
      D Electromagnetic theory Correct Answer Incorrect Answer

      Solution

      The photoelectric effect demonstrates that light behaves as particles (photons) that transfer energy to eject electrons from a metal surface.

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