Exam-style question
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What is the consequence of the photoelectric effect not being explained by wave theory?.
- A.It led to the development of quantum theory.
- B.It confirmed that light behaves only as a wave.
- C.It showed that electrons cannot be emitted from metals.
- D.It proved that energy is always conserved.
Model answer
What a good answer should say
- It led to the development of quantum theory.
Explanation
Why this works
The inability of wave theory to explain the photoelectric effect caused scientists to reconsider the nature of light and matter. This led to the development of quantum theory, which incorporates the concept of quantized energy levels and photon interactions, fundamentally changing our understanding of physics.
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