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a wave vibrating in the direction of propagation.

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Refraction of  waves involves a change in the direction of waves as they pass from one medium to another.

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Light can bend and move through the material, which is called refraction.

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refers to various phenomena that occur when a wave encounters an obstacle

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A substance that makes possible the transfer of energy from one location to another

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A wave in which the direction of displacement is perpendicular to the direction of propagation

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A mechanical wave is a waves that is an oscillation of matter

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parts of a fluid or an elastic solid whose equilibrium has been disturbed, or of an electromagnetic wave.

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It is the lowest point of the cycle

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A crest is the length of a wave.