A glass clad fiber is made with core glass of refractive index 1 4 and the cladding is doped to give a fractional refractive

Question

A glass clad fiber is made with core glass of refractive index 1 4 and the cladding is doped to give a fractional refractive index difference of 0 004 Choose the correct options Marks 1 The numerical aperture of the fiber will be OPTIONS 0 00167

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