What do you mean by a photon?

Answer 1

Light is made up of small pieces called photons. In other words, a photon is a particle of light. Or of electromagnetic radiation in general - it need not be visible light.

Answer 2

In many experiments, light behaves as if it were composed of particles instead of waves.

And the theory that says light is a stream of particles leads to predictions that are proven

to be true when Physicists design experiments to test them. "Photon" is the name given

to these tiny particles that make up light ... and all other forms of electromagnetic radiation,

such as radio, heat, and x-rays.

That doesn't mean that we should forget all about waves. In many other experiments,

light also behaves like a series of waves. And the wave theory also predicts behavior

that is observed in experiments designed to look for it.

So we have to say that light ... and all other electromagnetic radiation ... is some kind of

combination of waves and photons. That's not something that we can easily understand

from what we see around us in everyday life. But when we design experiments to tease

out a description of what light is all about, it jumps out at us, and we can't ignore it.

Answer 3

The photon is the carrier of electromagnetic energy.

Answer 4

Photon is the particle of light same as electron, proton & nutron are the particles of matter.

Answer 5

A photon is a fundamental particle of light that carries electromagnetic energy. It has no mass and travels at the speed of light in a vacuum. Photons exhibit properties of both particles and waves.

Answer 6

This is a current of photons.