What is the meaning of refractive index class 10th

- Refractive index of diamond is 2.42 what is the meaning of this statement class 10th
- The refractive index of water is 1.33 what is the meaning of this statement class 10th
- The refractive index of diamond is 2.42 what is the meaning of this statement class 10th ncert
- The refractive index of diamond is 2.42 what is the meaning of this statement class 10th physics
- Refraction of light