Question

what is reflection.......​

Answer 1

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reflection is the throwing/reflecting back of light from a plane surface(generally a plane mirror) . Any regular surface doesn't absorbs the light and reflects it back.

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Answer 2

Explanation:

Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated. Common examples include the reflection of light, sound and water waves.