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Photons, our word for the properties of light that make it seem particle-like, are massless and travel about 186,000 miles per hour in a vacuum.
Wiki User
∙ 15y ago
Wiki User
∙ 15y agofirst, what are photons? particles or waves of light. the obvious answer is the speed of light, because photons are yet again, particles of light
Wiki User
∙ 13y agoA photon is light so travels at 186,000 miles per second (The speed of light)
Wiki User
∙ 8y agoThe speed of light is about 186,000 miles per second
Wiki User
∙ 11y agoThey never have any other speed, neither higher nor slower,
so they don't need to 'reach' it.
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How do you find the energy of a photon?
You need to know the photon's frequency or wavelength. If you know the wavelength, divide the speed of light by the photon's wavelength to find the frequency. Once you have the photon's frequency, multiply that by Planck's Konstant. The product is the photon's energy.
What is photon characteristics?
Under the photon theory of light, a photon is a discrete bundle (or quantum) of electromagnetic (or light) energy. Photons are always in motion and, in a vacuum, have a constant speed of light to all observers, at the vacuum speed of light (more commonly just called the speed of light) of c = 2.998 x 108 m/s.
How does photon differ from inertial particle?
A photon is said to be "massless", meaning that it has no REST MASS (of course, having energy, it also has an equivalent mass).In a vacuum, a photon can ONLY move at the so-called speed of light (about 300,000 km/second). "Regular" particles can ONLY move at sub-light speed. They can get close to the speed of light, but never quite reach it.
What is the term used for a high speed bundle of energy?
X-ray Photon
How can I calculate the energy of a photon if I know the wavelength?
Multiply (Planck's constant) times (the speed of light), and divide the result by the photon's wavelength.Be careful to keep the units consistent.
Does a photon move at the speed of light?
Yes, a photon moves at the speed of light, because photons have no mass.
Where does a photon get its speed from?
Nowhere. A photon must travel at the speed of light so it starts with that speed when it is created. This is the origin of the theory of special relativity.
Can fast neutron and photon have same speed?
No, a photon always moves at the speed of light, and nothing with non-zero mass (which includes neutrons) can move that fast
How do you find the energy of a photon?
You need to know the photon's frequency or wavelength. If you know the wavelength, divide the speed of light by the photon's wavelength to find the frequency. Once you have the photon's frequency, multiply that by Planck's Konstant. The product is the photon's energy.
How photon differ from an inertial particle?
In a vacuum, a photon can ONLY move at the speed of light. A regular particle can ONLY move at speeds less than the speed of light.
Is it possible to attain light speed?
Only if you are a photon. In that case, you always move at the speed of light. If you're not a photon, and have any mass while you're sitting still, and are not moving at the speed of light right now, then you can never attain light speed.
What is the speed of a light wave?
299 792 458 m / s, and the speed is the same for a photon (this speed is in a vcuum)
What is photon characteristics?
Under the photon theory of light, a photon is a discrete bundle (or quantum) of electromagnetic (or light) energy. Photons are always in motion and, in a vacuum, have a constant speed of light to all observers, at the vacuum speed of light (more commonly just called the speed of light) of c = 2.998 x 108 m/s.
Is there anything which can move at a speed of light?
yes, exemple; photon and electricity
What does a photon see when it looks in the mirror?
Another photon approaching at the speed of light. Photons have no sensory organs so they cannot "see" anything.
What is the mass of a photon in motion?
A photon is a massless particle, meaning it has no rest mass. Its mass is zero, but it does have energy and momentum.
How does photon differ from inertial particle?
A photon is said to be "massless", meaning that it has no REST MASS (of course, having energy, it also has an equivalent mass).In a vacuum, a photon can ONLY move at the so-called speed of light (about 300,000 km/second). "Regular" particles can ONLY move at sub-light speed. They can get close to the speed of light, but never quite reach it.
