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It is important to point out that we are not so much interested in dispersive prisms that split a beam of white light ... their ability to redirect light through refraction and reflection.

Lawrence Bragg begins by demonstrating some of the familiar effects of reflections and refraction by means of a beam of light passing through water, a prism and lenses. This is followed by a ...

It is then refracted away from the normal at the boundary between glass and air as it leaves the prism.

The rainbow showed up because of something called prism refraction. The window I was sitting near had a beveled or slanted edge which caused the rainbow. I was thinking about how cool light refraction ...

Light of higher frequency has a greater refractive index than lower frequency light. This explains why a prism can disperse white light into different colours. The change in refraction is quite ...

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An explanation of double refraction is followed by Lawrence Bragg demonstrating its effects by means of Polaroid, a crystal of calcite and a lamp incorporating an iris diaphragm. The effects that are ...