what is principle of reversibility ?

Asked by  | 5th Mar, 2012, 03:32: PM

Expert Answer:

The principle of reversibility states that light will follow exactly the same path if its direction of travel is reversed.



Using snell 's law :
Sin i/ Sin r = 1n2
and for Second image Sin r/ Sin i = 2n1
So ,  1n2  = 1/ 2n1

Answered by  | 5th Mar, 2012, 03:59: PM

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