What is light exactly?

[A learner]

 

 

 

this is my work. am i correct or am i missing out on something?

[swansont]

E = mc² assumes a particle at rest. Light is never at rest.

[A learner]

so how is light a particle if a particle is matter but light is not matter?

[swansont]

1 hour ago, A learner said:

so how is light a particle if a particle is matter but light is not matter?

"a particle is matter" is not a true statement when one is discussing quantum mechanics.

[Rajiv Naik]

as per  my understanding.light is not a particle its fundamental  radiation wave traveling through virtual particles -

Mass is information  .isnt it ? 

[Strange]

Just now, Rajiv Naik said:

as per  my understanding.light is not a particle its fundamental  radiation wave traveling through virtual particles -

It can be described in two ways: either as a wave of electric and magnetic fields (the classical view) or as a quantum of electromagnetism, ie. a photon, in quantum theory. A photon is not really a particle, but it behaves in some ways like one. Neither is it a wave, but it behaves in some ways as if it were.

[Rajiv Naik]

its well understood now that particles oscillates and do not have angular or  linear momentum.

so how it can be travellig as a particle ?

 

it has to be ordiation that travels

[Strange]

Just now, Rajiv Naik said:

its well understood now that particles oscillates and do not have angular or  linear momentum.

Particles have both linear and angular momentum. (And, in the classical model, electromagnetic waves have momentum.)

1 minute ago, Rajiv Naik said:

so how it can be travellig as a particle ?

It is not really a particle. That is just an analogy to describe some of its properties (mainly the fact that a photon is indivisible).

[Sensei]

Quote

What is light exactly?

Electric neutral particle called photon, with energy E=hv (in English units E=hf), where h - Planck constant, v and f - frequency of photon.

The larger frequency, the shorter wavelength, the larger photon has energy.

 

[swansont]

1 hour ago, Rajiv Naik said:

 it has to be ordiation that travels

The photon, or the wave, is the radiation.

[Rajiv Naik]

Photon is perception we have when radiation wave travels through virtual particles.

photon itself is not a radiation, 

its uniform fluctuation of vaccum particles comming and going out of existance everybillionth of second. pulsating its a syphony. 

isnt it?

hysenberg principle as well earlier theories are found to have  anamolies as we are exploring quantum mechanics and string theory..

67% of universe is dark radiations not intereacting witn fundamental  particles (radiations) (5% of universe rest being dark matter) and in fact repel them.

 

I was saiying in this context .