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Created page with "==Key Stage 5== ===Meaning=== Two sources of waves are coherent if they emit waves with a constant phase difference. ===About Coherence=== Coherent sources produce waves..."
==Key Stage 5==
===Meaning===
Two sources of waves are [[coherent]] if they emit waves with a constant phase difference.
===About Coherence===
Coherent sources produce waves that are in sync, having a constant phase relationship.
Necessary for producing clear interference patterns.
Coherent waves are typically monochromatic and have the same frequency.
Essential in applications like lasers, holography, and interferometry.
Coherence can be temporal (constant phase difference over time) or spatial (constant phase difference
across space).
The degree of coherence affects the visibility and contrast of interference fringes.
Achieving coherence often involves stabilizing the frequency and phase of the wave sources.
===Examples===
Laser light is coherent and can produce clear interference and diffraction patterns.
In a double-slit experiment, coherent light sources create distinct and stable interference fringes.
===Meaning===
Two sources of waves are [[coherent]] if they emit waves with a constant phase difference.
===About Coherence===
Coherent sources produce waves that are in sync, having a constant phase relationship.
Necessary for producing clear interference patterns.
Coherent waves are typically monochromatic and have the same frequency.
Essential in applications like lasers, holography, and interferometry.
Coherence can be temporal (constant phase difference over time) or spatial (constant phase difference
across space).
The degree of coherence affects the visibility and contrast of interference fringes.
Achieving coherence often involves stabilizing the frequency and phase of the wave sources.
===Examples===
Laser light is coherent and can produce clear interference and diffraction patterns.
In a double-slit experiment, coherent light sources create distinct and stable interference fringes.