When the direction of a wave change as it passes from one medium to another it is called_______.
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When the direction of a wave change as it passes from one medium to another it is called_______.
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Answer:
Refraction is the change in direction of propagation of a wave when the wave passes from one medium into another, and changes its speed. Light waves are refracted when crossing the boundary from one transparent medium into another because the speed of light is different in different media.