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# What is the bending of light called?

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The bending of light, sound or heat waves is known as refraction. Refraction occurs when a light wave, heat wave or sound wave moves from one medium to another.

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When a wave travels from one medium to another with a different density, the velocity of the wave changes. This change in velocity changes the direction of the wave, making it bend. The bend occurs at the interface, the point at which the medium changes. Though the velocity changes, the frequency of the wave remains constant. The change in direction can be calculated using Snell's law and is frequently used in optics development.

## Related Questions

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Refraction is caused by light passing from one medium to another (from air to water, for example) and experiencing a change in speed. A fisherman looking into water to spear a fish will have to remember that refraction will distort the image he sees under the water's surface.

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Refraction is the differential bending of light as it passes through a medium, and it is used in a wide variety of applications throughout industry and the sciences as well as in living bodies. Light refracted through an optical prism spreads out into a spectrum of its constituent colors and allows individual wavelengths to be examined on their own.

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Snell's law of refraction is the relationship between the angles of incidence and refraction with respect to the refraction indices of two different media. Snell's law of refraction can be applied to the refraction light for any two media. Snell's law predicts the angle of refraction that light follows when passing from one medium and into the next medium.

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White light is composed of all colors of light in the visible spectrum. A prism diffracts all the colors in white light at different angles, separating them.