How does light stay in motion? Why does it travel at it's speed? Does

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SUMMARY

The discussion centers on the nature of light, specifically its motion and speed. According to classical electrodynamics, Maxwell's equations describe light as an electromagnetic wave traveling at the speed of light (c). In quantum mechanics, light consists of massless particles called photons, which exhibit both wave-like and particle-like properties. This duality means that categorizing light strictly as a wave or a particle is inaccurate.

PREREQUISITES
  • Understanding of Maxwell's equations in classical electrodynamics
  • Basic knowledge of quantum mechanics
  • Familiarity with the concept of photons and their properties
  • Comprehension of wave-particle duality
NEXT STEPS
  • Study Maxwell's equations and their implications for electromagnetic waves
  • Explore the concept of photons in quantum mechanics
  • Research wave-particle duality and its significance in physics
  • Examine the implications of light's speed in various physical theories
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Students of physics, educators, and anyone interested in the fundamental properties of light and its behavior in classical and quantum contexts.

Cbray
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How does light stay in motion? Why does it travel at it's speed? Does it act as a particle or wave?

Any links I can read information from will be appreciated !~
 
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Cbray said:
Does it act as a particle or wave?

Any links I can read information from will be appreciated !~

Please start by reading the FAQ subforum in the General Physics section.

Zz.
 


wikipedia is good. Search wikipedia. Or google.
In classical electrodynamics, Maxwell's equations in free space give an electrodynamic wave which travels at c. This is the classical picture.
In quantum mechanics, light is made up of particles called photons which have zero rest mass and must therefore travel at c. These photons show both wave-like and particle-like properties (as with all quantum objects). In quantum mechanics, its not really correct to say something is a wave or is a particle.
 

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