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in Optics by (48.1k points)
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The principle behind optical fibres is 

(a) total internal reflection 

(b) total external reflection 

(c) both (a) and (b) 

(d) diffraction

1 Answer

+1 vote
by (48.5k points)
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Best answer

(a) total internal reflection 

Optical fibres work on the principle of total internal reflection

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