Are Photons Particles or Waves?

In summary, the conversation discusses the nature of photons and how they can exhibit both wave-like and particle-like properties depending on how they are observed. It is not accurate to label them solely as waves or particles, as they are quantum objects with unique properties. The speaker also uses an analogy of an ice-cream cone to illustrate this concept.
  • #1
thetexan
269
13
When the light from a distant star comes to our eyes...as the photons transverse the distance...are they traveling as a particle or as a wave? ie Are we being bombarded by millions of photon bullets or millions of waves?

tex
 
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  • #2
Photons are not particles OR waves, they are quantum objects. If you test for them as particles (for example, with the retina of your eye) they will ACT like particles and if you test for them as waves they will ACT like waves, but thinking of them as one or the other leads to the kind of confusion you are having.
 
  • #3
thetexan said:
Are we being bombarded by millions of photon bullets or millions of waves?
It is not useful to think of quantum mechanical particles as though they were classical bullets nor as though they were classical waves. They are quantum particles, and quantum particles have quantum properties that are not effectively captured by either classical description.
 
  • #4
Actually photon can be both a wave and a particle at the same time
Think of photon as a ice-cream cone,if you look at it in a angle it will look like a circle
But if you look at it in a different angle it will look kind of like a triangle shape( maybe a prism)
So when photon travel at the speed of light they are waves but when they interact with other sub-atomic particle they appear to be particle
 
  • #5
Sousf said:
Think of [STRIKE]photon[/STRIKE] light as a ice-cream cone,if you look at it in a angle it will look like a circle
But if you look at it in a different angle it will look kind of like a triangle shape( maybe a prism)

That's not a bad analogy (although I made a small correction above), but you're drawing the wrong conclusion from it:
Actually photon can be both a wave and a particle at the same time
Instead, you should say that light is neither a wave nor a particle, but depending on how you look at it, it will show either wave-like or particle-like properties.
 
  • #6
Sousf said:
Actually photon can be both a wave and a particle at the same time
Think of photon as a ice-cream cone,if you look at it in a angle it will look like a circle
But if you look at it in a different angle it will look kind of like a triangle shape( maybe a prism)
So when photon travel at the speed of light they are waves but when they interact with other sub-atomic particle they appear to be particle

Yeah, what nugatory said. Reread post #2.
 

FAQ: Are Photons Particles or Waves?

When are photons waves?

Photons are always considered to have wave-like properties. It is a fundamental concept in quantum mechanics that photons exhibit both particle and wave-like behavior.

Are photons always considered to be waves?

Yes, photons are always considered to have wave-like properties. They have a wavelength and frequency, and can exhibit interference and diffraction patterns.

Can photons be considered as particles and waves at the same time?

Yes, according to the wave-particle duality principle in quantum mechanics, photons can exhibit both particle and wave-like behavior simultaneously.

How do we know that photons have wave-like properties?

The behavior of photons can be observed through experiments such as the double-slit experiment, which shows the interference pattern created by photons passing through two slits. This is a characteristic of waves.

Do all particles have wave-like properties?

No, not all particles exhibit wave-like behavior. This is a unique property of particles in the quantum world, such as photons, electrons, and protons.

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