Exam-style question
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What is the primary evidence supporting the wave theory of light in diffraction?.
- A.Light creates a shadow when blocked
- B.Light spreads out after passing through a narrow slit
- C.Light travels in straight lines
- D.Light can be reflected off surfaces
Model answer
What a good answer should say
- Light spreads out after passing through a narrow slit
Explanation
Why this works
Diffraction demonstrates that light behaves as a wave, as it spreads out when passing through a narrow opening, which is a key characteristic of wave behavior. This contrasts with particle behavior, where light would simply travel in straight lines.
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