WAEC Physics 2021 Theory — Question 10
Question 10 of 35 from the West African Examinations Council (WAEC) Physics 2021 Theory paper, with the correct answer and a full explanation.
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7(b). Explain each of the following terms as used in fibre optics: (i) Core (ii) Cladding.
Model answer
(i) Core: the central part of the optical fibre through which light is transmitted/carried. (ii) Cladding: the outer layer surrounding the core, made of material with a lower refractive index, which keeps light confined within the core by total internal reflection.
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