About 0.3 meters in a vacuum. Divide that by 1.0003 to get the distance in meters per nanosecond through air. Divide by 1.5 for glass.
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In one nanosecond, a photon of light energy will travel approximately 0.3 meters in a vacuum, which is the speed of light.
Electromagnetic waves or radiation
The particle that carries radiant energy is the photon. Photons are massless particles that travel at the speed of light and carry electromagnetic radiation, including visible light, radio waves, and x-rays.
The energy of a photon is greater than that of an electron because photons are massless particles that travel at the speed of light, which requires a high amount of energy. Electrons, on the other hand, have mass and velocity limitations that result in lower energy compared to photons.
Photons move because they are elementary particles that travel at the speed of light in a vacuum. They do not have mass, which allows them to move freely and propagate through space. The energy of a photon determines its movement and wavelength.
It takes a particle of energy, such as a photon, about 100,000 years to travel from the core of the sun to its surface before being released into space.