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What do you mean by geometric path length?Define it?

What do you mean by geometric path length?Define it?

Grade:12th pass

1 Answers

Umakant biswal
5359 Points
5 years ago
DEAR PARBJEET
In optics, optical 
path length (OPL) or optical distance is the product of the geometric length of the path light follows through the system, and the index of refraction of the medium through which it propagates. 
HOPE IT CLEARS 
REGARDS 

 

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