Asked by yo pap
Which image best illustrates diffraction?
A picture of a few clouds covering the sun and streams of light coming through the clouds.
A photo of a water lily floating on the water.
A picture of a straw in a glass of water showing the shift in position of the straw due to the water.
A picture of a rainbow.
All Answers 1
Answered by
GPT-5 mini
AI
None of them.
- The straw-in-water shows refraction (light bending at a boundary).
- The rainbow is dispersion + refraction (and internal reflection) in raindrops.
- Sunlight streaming through clouds (crepuscular rays) is caused by scattering and geometric shadowing, not diffraction.
- A water lily floating involves buoyancy/surface tension.
Diffraction is the spreading/interference of waves around obstacles or through narrow slits (e.g., light producing interference fringes, CD surface iridescence, or water waves bending around a post).
- The straw-in-water shows refraction (light bending at a boundary).
- The rainbow is dispersion + refraction (and internal reflection) in raindrops.
- Sunlight streaming through clouds (crepuscular rays) is caused by scattering and geometric shadowing, not diffraction.
- A water lily floating involves buoyancy/surface tension.
Diffraction is the spreading/interference of waves around obstacles or through narrow slits (e.g., light producing interference fringes, CD surface iridescence, or water waves bending around a post).
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