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What should be the maximum acceptance angle at the air core interface of an optical fibre if n1 and n2 are the refractive

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What should be the maximum acceptance angle at the air core interface of an optical fibre if n1 and n2 are the refractive indices of the core and the cladding, respectively.

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1 Answer

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Best answer

Correct option (b)

Explanation:

Core of acceptance angle

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