Wed July 11, 2012 By: Tejit Pabari

what is optical illusion?

Expert Reply
Thu July 12, 2012
An optical illusion is an illusion caused by bending of light rays or due to their distortion in waveform owing to the type of medium they travel.
Eg. Mirage is the illusion caused due to the bending of rays by total internal reflection due to which we see water's reflction on ground
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