1- Consider a step-index optical fibre with refractive index n₁ = 1.4332 in the core andn₂=1.3223 in the cladding.a) Explain the geometrical propagation of light along the fibre.b) Calculate the critical angle at the core-cladding interface.c) We call numerical aperture (NA) to the magnitude defined by : NA=sin 0, where 0 is themaximum acceptance angle of incidence for light to be transmitted in the fibre. Show thatNA = (nn) and calculate NA for this optical fibre.air0₁cladding n₂cladding n₂core n

Given Data:Refractive index of the core (n1) = 1.4332.Refractive index of the cladding (n2) =…

Answered: 1- Consider a step-index optical fibre…

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