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During refraction, what happens to a wave when it travels from one medium to another?
The wave travels in the opposite direction.
The wave changes speed.
The wave moves in the same direction.
The wavelength increases.

Respuesta :

mathssydney
The wave changes speed. 
AL2006
-- The wave changes speed.

-- The wave almost always changes its direction.

-- The wavelength changes, one way or the other.

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