A diamond’s refractive index is 2.42, which means that compared to the speed of light in the air, it will slow down in a diamond by a factor of 2.42.
In other words, the speed of light in a diamond is 1/2.42 times that of light in a vacuum.
A diamond’s refractive index is 2.42, which means that compared to the speed of light in the air, it will slow down in a diamond by a factor of 2.42.
In other words, the speed of light in a diamond is 1/2.42 times that of light in a vacuum.