What is a photon?
A photon is one of the elementary particles of the universe and
is accountable for much of its basic structure. Photons are
responsible for one of the fundamental forces of nature – the
electromagnetic force – and are often regarded by many as the basic
unit of light. They are also responsible for forces in an electromagnetic
field and are the main constituent of light that enables it to travel
throughout the cosmos.
Photons are basically little packets of energy, or electromagnetic
waves, but they contain no mass or electrical charge whatsoever. They
are released from atoms when a change in energy occurs, travel at the
speed of light and can exist as both a wave and as a particle. When we
see light, what we are really observing is the emission of photons from
agitated atoms.
responsible for one of the fundamental forces of nature – the
electromagnetic force – and are often regarded by many as the basic
unit of light. They are also responsible for forces in an electromagnetic
field and are the main constituent of light that enables it to travel
throughout the cosmos.
Photons are basically little packets of energy, or electromagnetic
waves, but they contain no mass or electrical charge whatsoever. They
are released from atoms when a change in energy occurs, travel at the
speed of light and can exist as both a wave and as a particle. When we
see light, what we are really observing is the emission of photons from
agitated atoms.
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