Single Answer MCQ
Q-00040304
What is the relationship between the refractive indices of two media in terms of light speed?
1
Refractive index is ratio of wavelengths
2
Refractive index is ratio of angles
3
Refractive index is inverse of the ratio of light speeds
4
Refractive index is constant for all media
Answer and Solution
Answer
C. Refractive index is inverse of the ratio of light speeds
Solution:
The refractive index is the ratio of the speed of light in a vacuum to the speed of light in the medium. Thus, it can also be understood as the inverse of the ratio of speeds of light in two different media.
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