Learning objective
Describe the conditions needed for sustained interference.
Read the explanation, check the common trap, then practise with flashcards and questions.
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Questions
Topic
Refraction, diffraction and interference
Subtopic
Interference
Aqa A Level PhysicsWaves
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Quick explanation
Describe the conditions needed for sustained interference
- This point belongs to Refraction, diffraction and interference, especially Interference.
- You need to be able to describe the conditions needed for sustained interference.
- The key ideas to know are interference.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Key concepts
interference
Why it matters
This objective helps connect Interference to exam-style questions, flashcards, and revision notes for Refraction, diffraction and interference.
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Revision notestopic notes
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Open revision notesRelated learning objectives
- Use path difference and phase difference to explain maxima and minima.
Interference
- Apply double-slit relationships to fringe spacing.
Interference
- Required practical 2: investigate interference effects using light.
Interference
- Describe diffraction of waves at apertures and edges.
Diffraction
- Explain how gap size and wavelength affect diffraction.
Diffraction