Question

What is refraction and reflection

Answer 1

reflection:- bouncing back of a ray of light after striking on a hard surface
rarefaction:-bending of light as it travels from one medium to another

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Answer 2

Reflection ----
when a ray of light falls on a polished smooth surface, such as a mirror it returns back into the same medium .
rafraction------
when light enters from one transparent medium into another transparent medium , it changes its path ,called refraction of light.
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