Question

a) Define refraction.
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Answer 1

Answer:

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Explanation:

Refraction is the change in direction of a wave, caused by the change in the wave's speed. Examples of waves include sound waves and light waves. Refraction is seen most often when a wave passes from one transparent medium to another transparent medium. Different types of medium include air and water.

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Answer 2

Answer:

the phenomena of light, radio waves etc. which interference between one medium to another medium is called refraction