Calculate_the_numerical_aperture_of_an_optical_fibre_whose_core_and_cl – McqOptions

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1.	Calculate_the_numerical_aperture_of_an_optical_fibre_whose_core_and_cladding_are_made_of_materials_of_refractive_index_1.6_and_1.5_respectively.
A.	0.55677
B.	55.77
C.	0.2458
D.	0.647852
Answer» B. 55.77

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