3 ms·
To say that light travels at “nearly the speed of light” in any medium is a bad choice of words. Also with refraction coefficient of 1.40 - 1.45 in fiber, the t
by raviolo 8y ago
To say that light travels at “nearly the speed of light” in any medium is a bad choice of words. Also with refraction coefficient of 1.40 - 1.45 in fiber, the term “nearly” is not appropriate if the intention was to compare with vacuum.