define refraction of light
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Explanation:
Refraction is the bending of light (it also happens with sound, water and other waves) as it passes from one transparent substance into another. This bending by refraction makes it possible for us to have lenses, magnifying glasses, prisms and rainbows.
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Answer:
change in direction of propagation of any wave as a result of its travelling at different speeds at different points along the wave front.
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