Definition of refraction... Diagrams of refraction.
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Draw the diagram of refraction of light in glass slab. Write the laws of refraction. Answer: Refraction is the bending of a wave when it enters a medium where its speed is different. We can define it as the change in direction of a wave passing from one medium to another or from a gradual change in the medium
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Refraction is basically bending of light due to change in speed in different media .
as light enters from 1 medium to another, Its speed anges and causes it to bend
From rarer to denser medium ,The ray bends towards normal.
From denser to rarer medium ,The ray bends away from normal.
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