Exam-style question
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Describe how the wave model of light is supported by Young's double-slit experiment.
Model answer
What a good answer should say
- Young's double-slit experiment supports the wave model of light by demonstrating interference patterns.
- When light passes through two closely spaced slits, it creates regions of constructive and destructive interference on a screen, which can only be explained if light behaves as a wave.
- This observation contradicts the particle model, which cannot account for the observed patterns.
Explanation
Why this works
This answer is strong because it outlines the cause (light passing through slits), explains the mechanism (creation of interference patterns), states the effect (support for the wave model), and its consequence (contradiction of the particle model). The question tests the student's ability to link experimental evidence to theoretical concepts.
Common mistake
No common mistake is linked to this question yet.