Physics A-Level
Interference
What Interference means in Physics A-Level, as defined for AQA, OCR.
Definitions of Interference
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Reference: OCR
The superposition of waves from two or more sources, producing regions of maximum and minimum resultant displacement.
Arising from superposition of waves from two or more coherent sources, producing bright and dark fringes.
Occurs when two waves of the same type overlap and their displacements combine.
Topics that use Interference
- Interference (AQA A-Level)
- Practical skills (OCR A-Level)
- Superposition (OCR A-Level)
Related terms
- Coherence
- Constructive interference
- Constructive superposition
- Destructive interference
- Destructive superposition
- Fringe spacing
- Grating spacing
- Path difference
Using Interference in the exam
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