Question

what is refractive index explain with an example​

Answer 1

Answer:

The symbol n₂ denotes the absolute Refractive Index. For example, the water refractive index is 1.33, which means the speed of light in water is 1.33 times lesser than the speed of the light in vacuum. Optically denser medium is a medium, which has a higher value of the refractive index.