The more appropriate question would be Is light a particle or a wave?
But first, lets answer your question.. Light is both an energy and a particle.....
The Energy liberated by a light can be given by E=hc/lamda
where c is the speed of the light and landa is the wavelength of the light.
Now to my question.. Light is both a particle and a wave...
Light travels in straight lines..... How does it travel???? Through particles.. the light particles transfer the light energy by rapid vibration as in case of sound energy....
How it is a wave..?? This was proved by Albert Einstein, When we consider a very small body, when i say very small. i mean not visible from naked eyes,,, light tends to curve alont the body,, (This particular phenomenon is given a special name, sorry, i forgot.)Thus, light can also be treated as a wave.
Photons
When light behaves like a particle, it is called a photon. Photons are the fundamental particles of light and carry energy and momentum.
In physics, the relationship between the speed of light (c), energy (E), and momentum (p) of a particle is described by the equation E pc, where E is the energy of the particle, p is its momentum, and c is the speed of light. This equation shows that the energy of a particle is directly proportional to its momentum and the speed of light.
A particle of light. Or, in general, of an electromagnetic wave.
Light behaves as both a wave and a particle in chemistry. As a wave, light exhibits properties such as interference and diffraction, while as a particle, light consists of discrete packets of energy called photons. This dual nature of light is described by the wave-particle duality principle.
Photon
True, a photon is a quantum of energy, E=hf.
converted into thermal energy.
Light energy can exhibit properties of both a wave and a particle. This duality is known as wave-particle duality and is a fundamental concept in quantum mechanics. Depending on the experiment conducted, light can be observed as behaving like a wave (with properties such as interference and diffraction) or as a particle (with properties such as discrete packets of energy called photons).
The smallest particle or packet of light energy you can get.
photon
Light behaves like a particle in that it can be emitted and absorbed in discrete packets of energy called photons.