What are all the elements of light?
2006-12-27 05:57:45 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Physics
but the elements like heat and light and what else is a source of light the gets a job done?
2006-12-27 06:03:09 · update #1
Light is an electro-magnetic (EM) wave and a particle. Or so we know. It displays both behaviors as a wave and as a particle. The particles of light , as you probably know, are called photons. The energy of a photon is directly proportional to the frequecy of that light.
E=hv
h - Plank's constant
(6.62607e-34 Joules Sec = 4.1357 e -15 electron Volt Sec)
v - frequency of light in Hz
Heat is an EM emission of lower energy (red and infrared spectrum)
The ultraviolet, x-ray and gamma rays are waves of higher energy EM emissions.
When the body radiates heat for example, it radiates in red/infrared region of light spectrum.
An electron going to a higher atomic orbit will absorb a photon of energy, when it drops one level down it will release a photon of energy.
Does that help?
2006-12-27 06:02:21 · answer #1 · answered by Edward 7 · 0⤊ 0⤋
It is an observed fact that most of the matter in the universe are the three lightest elements: hydrogen, helium, and lithium. These elements were present during the initial formation of the universe, with the heavier elements being later formed in massive stars. The big bang model predicts, to a very good degree of accuracy, what the relative abundance of these three light elements should be.
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2006-12-27 06:00:30 · answer #2 · answered by Anonymous · 0⤊ 0⤋
All light is created when an electric field changes which causes a magnetic field. This new magnetic field also makes a new electric field, but usually it is weaker than the first, and the process dies out quickly. However, when the two fields generate each other at a certain speed - about 300,000,000 m/s, they can propagate each other forever. This is what we know is light. Interestingly enough, this electromagnetic wave also has characteristics of a particle. Light particles are called photons. Light is both a wave and a particle.
2006-12-27 07:04:30 · answer #3 · answered by Tony O 2 · 0⤊ 0⤋
visible light staying betwenn 400 to 700 nm of of EM wavelengt, about element may be its atom of light , nobody has found it yet.
2006-12-27 23:32:36 · answer #4 · answered by pra0007 2 · 0⤊ 0⤋