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What does special relativity say about the speed of light?
The speed of light is constant.
How slow can light go?
In some special substances, it was possible to slow the speed of light to just a few meters per second - incredibly slow compared to the speed of light in a vacuum.In some special substances, it was possible to slow the speed of light to just a few meters per second - incredibly slow compared to the speed of light in a vacuum.In some special substances, it was possible to slow the speed of light to just a few meters per second - incredibly slow compared to the speed of light in a vacuum.In some special substances, it was possible to slow the speed of light to just a few meters per second - incredibly slow compared to the speed of light in a vacuum.
If special relativity states that the speed of light is a constant how can refractive index be an indication of a change in the speed of light?
The relativity statement refers specifically to the speed of light in a vacuum.
Is the speed of light faster in a liquid?
No. According to special theory of relativity, the speed of light in all inertial mediums remains the same as that in the vacuum.
The speed of light is special because?
As far as they know, nothing goes faster.
If you turn on a flashlight while on a spaceship going the speed of light what speed is the light from the flashlight moving at?
c - Light goes at c in all frames of reference according to Special relativity
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.
What is the speed of a radiowave?
In free space, radio waves travel at the speed of light. In a material, such as co-ax cable, the speed is much lower, perhaps as low as 0.6 of the speed of light. Special arrangements may lower its speed even further.
What whould happend if uneverse expand faster than speed of light?
the far away galaxies may be moving faster than the speed of light already. In general relativity theory, expansion of space is not limited to the speed of light as it is in special relativity
What is the speed of light per planet?
The speed of light is the same for every observer everywhere. That is a fundamental tenet of the theory of special relativity (and everything based on it, such as the general theory of relativity and quantum field theory). To date no violation of the consistency of the speed of light has been measured. By the way, this does not say the speed of light is the maximum speed, just that the speed of light is constant, so the possible discovery of faster-than-light neutrinos does not invalidate this.
Is it true or false the second postulate of special relativity says that the speed of light in empty space depends on the motion of the source or of the observer?
False. The speed of light in empty space is a constant, independent of the motion of the source/observer. An observer travelling towards or away from a light source at 99% the speed of light would measure light going the same speed as an observer stationary relative to the light source.
Can a lepton travel faster than the speed of light?
Leptons have mass.According to special relativity, no particle with mass can travel at or faster than the speed of light. It would take infinite energy to do so.
