What ia refraction of Light ...
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REFRACTION OF LIGHT
the phenomenon associated with the change in the speed of light as it goes from one transparent medium into another it is usually observed as the change in the direction of propagation of incident light ray when it passes from one optical transparent medium to another
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☣☣Refraction is the bending of a wave when it enters a medium where its speed is different.
☣☣The refraction of light when it passes from a fast medium to a slow medium bends the light ray toward the normal to the boundary between the two media.
☣☣The amount of bending depends on the indices of refraction of the two media and is described quantitatively by Snell's Law.
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