Determination of the refractive index of a medium Watch this video for a practical demonstration of how to measure the refractive index of light through glass.

What does refractive index actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

Key Concepts Light Refraction Reflection Index of refraction Introduction If you pour water into a clear glass, what color is it? It's clear, right? But what happens if you try to look through it ...

Light bends when travelling through a concentration gradient of sugar in water. The top layer of liquid is pure water while the bottom layer is concentrated sugar water. In these layers, there is no ...

For Higher Physics, revise how to calculate the expected direction of refracted rays using Snell’s law. Calculate critical angle given refractive index.

A refraction test is given as part of a routine eye examination. This test tells your eye doctor what prescription you need in your glasses or contact lenses.

However, actually making practical metamaterials has proven to be very difficult. In principle, it should be much easier to achieve negative refraction with electron waves in a semiconductor. For ...