The numerical aperture of a fiber if the angle of acceptance is 15 degrees, is ∙ a. 017 ∙ b. 0.26 ∙ c. 0.50 ∙ d. 0.75

The numerical aperture of a fiber if the angle of acceptance is 15 degrees, is
∙ a. 017
∙ b. 0.26  
∙ c. 0.50  
∙ d. 0.75
by

1 Answer

Answer :

∙ b. 0.26
by

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