BSNL JTO Practice Questions - BSNL Junior Telecom Officer (JTO) Exam

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An optical fiber has a core refractive index of 1.48 and a cladding refractive index of 1.46. Calculate the critical angle at the core-cladding interface for total internal reflection.

80.6 degrees 70.5 degrees 9.4 degrees 45.0 degrees

Correct Answer:

80.6 degrees

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