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.

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 to see the world on the other side of the glass? It looks a ...

A property of a material that changes the speed of light, computed as the ratio of the speed of light in a vacuum to the speed of light through the material. When light travels at an angle between two ...

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

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 ...

Among the various sensing modalities available for bioprocess operations, index of refraction (IoR) is intriguing for its simplicity and capability for sample-less, real-time readout. A group led ...

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 ...