They are both accurate but velocity gives more information as it is speed with a direction
Light travels at the speed of light. There is no general velocity of light because velocity is a vector quantity, it also contains a direction and there is no preferred direction for light rays in general. Another answer: The speed of light has been calculated to be 186,000 miles per second.
Instantaneous.
The escape velocity of a black hole is equal or greater than the speed of light, so light cannot escape
Yes, phase velocity can exceed the speed of light in certain mediums. This is known as superluminal phase velocity. However, this does not violate the principle of causality or the speed of light in vacuum as it is the group velocity, rather than the phase velocity, that carries the information in a wave.
The equation for velocity approaching the speed of light is given by the relativistic velocity addition formula: v = (u + v') / (1 + u*v'/c^2), where v is the relative velocity between two objects, u is the velocity of the first object, v' is the velocity of the second object, and c is the speed of light in a vacuum.
Light travels at the speed of light. There is no general velocity of light because velocity is a vector quantity, it also contains a direction and there is no preferred direction for light rays in general. Another answer: The speed of light has been calculated to be 186,000 miles per second.
The velocity of light coming from a cars lights will be the speed of light C in the substance in front of the lights. It wont be the speed of light+the speed of the car however.
The velocity of light coming from a cars lights will be the speed of light C in the substance in front of the lights. It wont be the speed of light+the speed of the car however.
Exactly correct.
Answer = Velocity Velocity is the speed of light and, the speed of light, is a constant among Electromagnetic Radiation in the vacuum of space.
Neutrinos do not travel at the speed of light, but they do move very close to the speed of light.
It is not the entire equation, but for current practical purposes, it is correct. If an object is moving at relativistic speeds, it is not correct. It requires you use relativistic mass, which is based on the velocity relative to the speed of light. It is correct for any human purposes.
Instantaneous.
The escape velocity of a black hole is equal or greater than the speed of light, so light cannot escape
The equation for relativistic mass in terms of velocity (v) and the speed of light (c) is: m m0 / (1 - v2/c2) where m is the relativistic mass, m0 is the rest mass, v is the velocity, and c is the speed of light.
The speed of light is basically the speed limit in the Universe.
Yes, phase velocity can exceed the speed of light in certain mediums. This is known as superluminal phase velocity. However, this does not violate the principle of causality or the speed of light in vacuum as it is the group velocity, rather than the phase velocity, that carries the information in a wave.