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.
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.
Gamma radiation can travel several meters in air, depending on its energy level. Higher energy gamma rays can penetrate further than lower energy ones. Typically, gamma radiation can travel tens of meters in air before being absorbed or scattered.
because it has energy. but where did it come from? Not known yet
Electromagnetic waves or radiation
When a photon strikes an atom, it can be absorbed, leading to the excitation of an electron to a higher energy level, or it can be scattered or reflected, changing the photon's direction but not its energy. In some cases, the photon can also be emitted by the atom as a new photon with the same energy and direction.
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.
Energy from our Sun travels to the planets through space in the form of electromagnetic radiation, the carrier of which energy is the photon.
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.
11.8 inches
A photon is a discrete bundle of electromagnetic energy, carrying a specific amount of energy and momentum. Photons do not have mass and travel at the speed of light in a vacuum. They exhibit both wave-like and particle-like properties.
299,792,458 meters/second
299,792,458 meters/second
One nanosecond.
1 nanosecond = 10-9 sec = 0.000000001 sec = 1 billionth of a sec. (Roughly the time it takes light/radio to travel one foot.)