Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich phenomenon causes signal fading in fiber optic cables utilizing laser light?
A)Modal dispersion broadens the pulses.✓
B)Rayleigh scattering reflects shorter wavelengths.
C)Stimulated emission increases signal strength.
D)Fresnel diffraction sharply bends the light.
💡 Explanation
Modal dispersion broadens light pulses within the fiber optic strands because different modes travel at slightly differing speeds. Therefore, pulse broadening causes signal fading, rather than scattering or changes to intensity which do not primarily limit bandwidth.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Science →- Which mechanism accelerates oxygen production rate in catalytic converters?
- Which outcome occurs when ferromagnetic nanoparticles reach the Curie temperature?
- Which risk increases when excessive bias voltage is applied across a semiconductor junction?
- Which inefficiency arises in steam turbines when rapid steam expansion induces water phase transition?
- Which outcome occurs when eigenfunctions do not commute in quantum systems?
- Which consequence results when quantum mechanical calculations are truncated in models of metallic catalysts?
