Question

3(a) In the design an optical fibre, what type of material is most suitable for the design of the core? (b) State one condition necessary to confine signals to the core of an optical fibre.

Accepted Answer

(a) The material most suitable for the design of the core is pure glass (SiO2), plastic, or both.
(b) To confine signal to the core of an optical fibre, the refractive index of the core must be greater than that of the cladding.

WAEC Physics 2020 Theory — Question 3

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