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It is constant, because it's determined by the electrical properties of the
vacuum or material stuff it's traveling through. So as long as the electrical
permittivity and magnetic permeability of the medium don't change, the
speed that they determine doesn't either.
The constant speed of light "C" (for example in E=mC2) is the speed of light in a vacuum. Light in other mediums, such as glass, moves slower and creates such effects as refraction.
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Why constant is used?
Constant is the speed of light and as the speed of light cannot change it is 'constant'
Why use constants?
Constant is the speed of light and as the speed of light cannot change it is 'constant'
What does special relativity say about the speed of light?
The speed of light is constant.
Can light exceed its normal speed?
The speed of light is constant and can not be changed
What is speed that does not change - called?
constant
What is the constant speed at which light and other forms of radiation travel?
The constant speed at which light travels is 300M m/s.
Is the speed of light a constant?
Yes
Is speed of light constant?
yes
Which of these is constant for ALL types of electromagnetic radiation in a vacuum?
Answer = Velocity Velocity is the speed of light and, the speed of light, is a constant among Electromagnetic Radiation in the vacuum of space.
Is the speed of light constant in a vacuum?
Yes
Does planck's constant stand for speed of light?
No, it does not.
What happen when speed of light is not constant?
It is impossible that a constant thing can become inconstant..... \
