Question

define refraction
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Answer 1

Explanation:

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the fact or phenomenon of light, radio waves, etc. being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density.

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Answer 2

Answer:

The fact or phenomenon of light, radio waves, etc. being deflected in passing obliquely though the interface between one medium and another or though a medium and another or though a medium of varying density.

• Change in direction of propagation of any wave as a result of its travelling at different speeds at different points along the wave front
• Measurement of the focusing characteristics of an eye or eyes