Exam-style question
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Describe the phenomenon of diffraction and how it occurs when waves pass through an aperture.
Model answer
What a good answer should say
- Diffraction is the bending of waves around obstacles or through openings.
- It occurs when a wave encounters an aperture that is comparable in size to its wavelength, causing the wave to spread out as it passes through.
Explanation
Why this works
This answer is strong because it clearly defines diffraction and explains the conditions under which it occurs, demonstrating an understanding of wave behavior. The question tests the student's ability to articulate the concept of diffraction in a clear and concise manner.
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