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Generally a reflection of light or sound/changing of direction when passing from one medium to another of different optical density.

Some examples:

a)Light that bounces off the internal wall(s) of the diamond

b)Changes in the direction of energy propagation as a result of density changes within the propagating medium. In weather terms, this is important on determining how a radar beam reacts in the atmosphere.

c)The bending of a wave when it crosses a boundary between media due to a change in velocity of the wave. Until it reaches the ionosphere, a radio wave propagates in a straight line. Once in the ionosphere, it may be refracted back towards the ground

d)In Metallurgy, refraction is a property of metals that indicates their ability to withstand heat. Metals with a high degree of refraction are referred to as refractory. These metals derive their high melting points from their strong intermolecular forces

d)the process whereby radiation experiences a change in direction as a result of a change in density of the medium or media through which it travels

e)Test to determine an eye's refractive error and the best corrective lenses to be prescribed.

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Duane O'Hara

Lvl 10
3y ago

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