Can absolute refractive index of a medium be less than 1

- Can the value of absolute refractive index of a medium be less than 1 explain
- Can the absolute refractive index of a medium be less than 1 explain
- Can the absolute refractive index of a medium be less than 1 justify
- Can the absolute refractive index of a medium be less than 1 give reason
- Refractive index
- Refractive index class 10
- How to find index of refraction
- How to find refractive index experiment