The basic unit (quantum) of electromagnetic radiation (and therefore light), photons were first postulated by Planck, whose measurements of the blackbody spectrum showed that electromagnetic radiation...
A photon is an elementary particle, the quantum of light and all other forms of
electromagnetic radiation. It is the force carrier for the electromagnetic force, even
Photons are tiny little particles of light, far too small to see individually. All light is
made of photons (FOE-tahns). The earliest photons probably appeared about ...
Sep 19, 2010 ... To put it simply photons are the fundamental particle of light. They have a unique
property in that they are both a particle and a wave. This is ...
Answer: Under the photon
theory of light, a photon
is a discrete bundle (or quantum) of electromagnetic (or light) energy. Photons
act as both a wave and a particle all the time (even though it's common, but basically incorrect, to say that it's "sometimes a wave and ... More »
May 18, 2015 ... In this lesson, we will learn the definition of a photon. We will also explain
Planck's constant and its relationship to the photon energy and...
Photons are traditionally said to be massless. This is a figure of speech that
physicists use to describe something about how a photon's particle-like
What is a photon? This definition explains what a photon is and the history of its
discovery, as well as how photons are understood in physics and the ...
In many instances, it is convenient to represent light as a "particle" phenomenon,
thinking of light as discrete "packets" of energy that we call photons. Now in this ...