Exam-style question
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How does the photoelectric effect challenge wave theory?.
- A.It shows that light can behave as a wave.
- B.It demonstrates the particle nature of light.
- C.It confirms the speed of light is constant.
- D.It explains diffraction patterns.
Model answer
What a good answer should say
- It demonstrates the particle nature of light.
Explanation
Why this works
The photoelectric effect illustrates that light can act as particles, or photons, which contradicts the wave-only perspective. This phenomenon highlights the necessity of integrating particle theory to fully explain light behavior.
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