Thu November 22, 2012 By:

What is the difference between reflection and refraction?

Expert Reply
Fri November 23, 2012
When a ray of light falls on any surface, a part of the light is sent back to the same medium. This phenomenon where the incident light falling on a surface is sent back to the same medium is known as reflection.
Refraction occurs when light rays travel from a medium with a given refractive index to a medium with another at an angle. At the boundary between the media, the velocity of light is altered, usually causing a change in direction.
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