Answer :
Answer:
Vacuum
Explanation:
The refractive index is usually found by finding the ratio between the speed of light in a vacuum and the speed of light in the given medium (glass in this case).
Hope this helped!
Answer:
Vacuum
Explanation:
The refractive index is usually found by finding the ratio between the speed of light in a vacuum and the speed of light in the given medium (glass in this case).
Hope this helped!