Refractive Index

Refractive Index

When light passes from one material to another, it bends due to a change in speed—a process called refraction. But how much the light bends depends on a property of the material known as its refractive index.

The refractive index tells you how much light slows down in a material compared to how fas...

Refraction is the bending of light when it passes from one material to another, like from air to water.

But how much does the light bend? That depends on a property called the refractive index.

The refractive index is a number that tells us how much a medium slows down light, which depends on the density of the medium.

Air has ...