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Understanding Light: Wave-Particle Duality in Physics

Explore the duality of light in physics through wave and particle models, supported by experiments like reflection, interference, and the photoelectric effect. Discover constructive and destructive interference, diffraction, and the double-slit experiment. Uncover the concepts of resonance, photons, electromagnetic radiation, and more.

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Understanding Light: Wave-Particle Duality in Physics

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  1. Wave Model

  2. Wave Model: Light can be thought of as a wave. Experiments that support this model are reflection, diffraction, and interference.

  3. Particle Model

  4. Particle Model: Light can be thought of as a particle. Experiments that support this are the double-slit experiment, reflection, and photoelectric effect.

  5. Constructive Interference

  6. Constructive Interference: When two waves meet and both have a + or - amplitude at that point in time build up where they overlap.

  7. Destructive Interference

  8. Destructive Interference: When two waves meet and have amplitudes on opposite sides (one + one -) which cancels some or all of both waves.

  9. Photoelectric Effect

  10. Photoelectric Effect: The emission (releasing) of electrons when light hits the surface of an object, most often a piece of metal.

  11. Trough

  12. Trough: The lowest most point on a transverse wave.

  13. Resonance

  14. Resonance: When an object experiences a wave with a frequency that matches its natural frequencywhich can increase the amplitude of the wave in the object.

  15. Photon

  16. Photon: A packet of energy carried in waves.

  17. Electromagnetic Radiation

  18. Electromagnetic Radiation:A kind of radiation including visible light, radio waves, gamma rays, and X-rays, in which electric and magnetic fields vary simultaneously.

  19. Diffraction

  20. Diffraction: The process by which a beam of light or other waves is spread out as a result of passing through a narrow opening, typically accompanied by interference.

  21. Crest

  22. Crest: The highest point in a transverse wave.

  23. Double-Slit Experiment

  24. Double-Slit Experiment: An experiment that shows that light can be both a particle and a wave.

  25. Wave-Particle Duality

  26. Wave-Particle Duality: Particles that are very VERY small, like electrons, can behave like a wave and a particle.

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