Optical Fibre Communication MCQ

1. Which of the following is NOT a common optical network topology?a) Ringb) Meshc) Stard) Linear Answer: d) Linear Explanation: Optical networks commonly employ ring, … Read more

1. What type of optical receiver is commonly used in direct detection?a) Coherent receiverb) Avalanche photodiode receiverc) PIN photodiode receiverd) Quantum dot receiver Explanation: The … Read more

1. Which of the following semiconductor devices emits coherent light?a) LEDb) Phototransistorc) LASER dioded) Photodiode Answer: c) LASER diodeExplanation: LASER diodes emit coherent light due … Read more

1. What is the primary cause of signal degradation in optical fibers? a) Attenuationb) Dispersionc) Interferenced) Reflection Explanation: The correct answer is (b) Dispersion. Signal … Read more

1. Which model describes light as a stream of particles? a) Ray modelb) Wave modelc) Particle modeld) Photon model Answer: c) Particle model Explanation: The … Read more