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Question
numerical aperture
 Question Submitted By :: Kunalpatel83
I also faced this Question!!     Rank Answer Posted By  
 
  Re: numerical aperture
Answer
# 1
Numerical Aperture (NA): The light-gathering ability of a 
fiber; the maximum angle to the fiber axis at which light 
will be accepted and propagated through the fiber. NA = sin 
a, where a is the acceptance angle. NA also describes the 
angular spread of light from a central axis, as in exiting 
a fiber, emitting from a source, or entering a detector.
 
Is This Answer Correct ?    2 Yes 0 No
Hiralal
 

 
 
 
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