How does refraction cause an object to appear bent? ‌

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How does refraction cause an object to appear bent?
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Thu Hương 5 years 2021-07-25T02:50:25+00:00 1 Answers 21 views 0

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  1. Nem
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    2021-07-25T02:52:07+00:00
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    Answer:

    Refraction occurs as light passes across the boundary between two media. Refraction is merely one of several possible boundary behaviors by which a light wave could behave when it encounters a new medium or an obstacle in its path. The transmission of light across a boundary between two media is accompanied by a change in both the speed and wavelength of the wave. The light wave not only changes directions at the boundary, it also speeds up or slows down and transforms into a wave with a larger or a shorter wavelength. The only time that a wave can be transmitted across a boundary, change its speed, and still not refract is when the light wave approaches the boundary in a direction that is perpendicular to it. As long as the light wave changes speed and approaches the boundary at an angle, refraction is observed.

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