Light is it Wave or Particle extention?

Question

A crt works with electrons hitting a phosphor screen not with light.
light being a paticle..nonsense..if u cut a million slits in a piece of card and shine a light its the same wave going through these slits but divided into a million pieces but still carrying same information.
light being self propagating is like saying perpetual motion exists.. it need energy to sustain it.
light is not affected by gravity however the fabric of the universe is.
stretch the fabric into long thin lines also affects the light

the so called 2 photon spinning in opposite directions is simply a wave being hit thus spinnig the the left side of the wave anticlockwise and the right side clockwise.

Wait till you hear my theory about gravity comming this month..this will waken all you so called scientists up.

Answer 1

Lets face it, we don't know for sure. You could be right and modern physics could be wrong....stranger things have happened. Wave/partical duality is a theory that appears to fit the results of experiment but it only takes one experiement to disprove a theory (I think that was Hawkin who said that). Keep it up, you might be right.

Answer 2

First of all, light *is* an electromagnetic field. It is the interaction between the electric and magnetic parts that allow the light to propagate in a vacuum. Next, light, like all things at the quantum level is both a particle and a wave. More specifically, it is a probability wave where the probability is of detection of a particle. The wave nature shows up in things like interference fringes and diffraction patterns. There is also a wavelength and frequency associated with it. However, if the intensity is very low, only individual photons will be detected. Even still, the interference patterns will build up over time. I'd should point out that electrons have this same property of being both a wave and a particle. We typically think of electrons as particles, but they also show interference patterns with constructive and destructive interference. This actually shows an underlying unity in ALL fundamental particles: they all show both wave and particle properties with the wave being a probability wave.

Answer 3

Light is both a wave AND a particle. This Particle is called a photon and has a rest mass of Zero.

Try reading some university level physics books.

Until you have really studied quantum mechanics and relativity in mathematically detail, you really won't understand that the photon exists as both.

It's obvious you don't realise that light is distorted by Mass (Gravitational Lenses and Black Holes), nor that the interference pattern can be created by single electrons.

Reading popular science books should have been the start of you studying, not the end. You've been drawing conclusions based on incomplete information.

And the light from a CRT is generated by exciting the electrons in the phosphor particles with an electron, moving them from their rest level to a higher level. When the electrons in the phosphor return to rest level, the emit a photon.

JBV^_^

Answer 4

Light behaves like a wave until it interacts with matter. Then the quantum mechanical picture of light as a quantized particle of energy is relevant. The multiple slit experiment you sight has be done using both light and electrons. Electrons also behave like waves according to quantum theory. Anyway, single photons have been sent at a double slit (Young's experiment) one at a time and the pattern at a screen opposite the slit was measured. The researchers find that when tehy dothis, they end up with the interference pattern you'd get if light were a wave and there were many photons present all at once. The photoelectric effect (Einstein, 1905) shows that light acts like a particle of quantized energy - it is the only model that fits the data.

I'm not sure what you mean by self propogating - light is energy. It propogates until it interacts with matter and gives up some or all of its energy or gains energy in the interaction. There's no violation of the third law of thermodynamics involved.

Light is affected by gravity - gravitational redshifts being evidence of that as well as the deflection of light from distant stars around massive objects, like the sun (Einstein, 1915, Eddington). Light travels on geodesic paths which are the shortest paths between two points on a surface. The surface happens to be teh four dimensional space time, and since this surface is curved by matter, light follows the curvature to stay on the shortest path permitted with the restriction that the speed of light remain constant.

Answer 5

simply:
if you perform wave experiments on light it behaves like a wave.

if u perform particle experiments on light it behaves like a particle.

it can be either a wave or a particle and this is known as light wave/particle duality.

light is a form electromagnetic radiation and does not follow self propagation as such because it is energy and will continue travelling infinitely until it interacts with matter.

light is affected by gravity (it can be sucked in by black holes) but because of the speed it travels at and the fact it contains no mass it seems like gravity does not affect light.

Answer 6

According to quantum mechanics, light exists as both a particle and a wave, and the case for light being a wave and for light being a particle can both be proved experimentally

Answer 7

Well, y'know, if you're really passionate about your wave-only light theories, then, by all means, feel free to go get yourself an advanced particle physics degree and prove them experimentally. 'Cause that's the level of credibility the wave/particle duality crowd enjoys, so unless you can match that, we have no reason to toss away the entire structure of modern physics based on you disagreeing with it.

Answer 8

Not defined, scientifically. There are valid theories about the nature of light in wave AND particle forms.

Answer 9

I haven't even got an 'o' level in physics, but I know that light is affected by gravity.
c.f. Black Holes.

Answer 10

easy man:

Light it is Wave & Particle extention * : )