A step-index fibre has a numerical aperture of 0.26, a core refractive – McqOptions

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1.	A step-index fibre has a numerical aperture of 0.26, a core refractive index of 1.5 and a core diameter of 100micrometer. Calculate the acceptance angle.
A.	1.47¬¨¬®‚Äö√†√ª
B.	15.07¬¨¬®‚Äö√†√ª
C.	2.18¬¨¬®‚Äö√†√ª
D.	24.15¬¨¬®‚Äö√†√ª
Answer» C. 2.18¬¨¬®‚Äö√†√ª

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