Does speed of light change with medium?
Yes it does change with the change in medium because different mediums have different optical densities.
What is the speed of light 3×10 8?
Elements of the Special Theory
The speed of light is measured to have the same value of c = 3×108 m/s no matter who measures it.
Is speed of light same in all medium?
Light is made up of quantum particles called photons. Speed of photons never vary, and is constant – km per second. Speed of Light is constant in all mediums and in all reference frames – this is the second postulate of Special Relativity, and is found to be true.
