Physics for IGCSE & O level - Rays And Waves (Section 10 - No. 22)
What is the refractive index of a medium defined as?
speed of light in a medium / speed of light in vacuum
speed of light in a vacuum / speed of light in a medium
wavelength of light in a vacuum / wavelength of light in a medium
frequency of light in a vacuum / frequency of light in a medium
解释
Refractive Index is the speed of light in a vacuum / speed of light in a medium.