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← ScienceWhich mechanism limits fiber optic cable transmission distance due to material properties?
A)Chromatic dispersion broadens pulses✓
B)Polarization mode mixes signal
C)Fresnel reflection reduces power
D)Bragg scattering attenuates signal
💡 Explanation
When light pulses travel through fiber optic cable, different wavelengths travel at slightly different speeds because of chromatic dispersion, which is caused by wavelength-dependent refractive index, and pulse broadens over distance which limit the maximal working cable range. Therefore chromatic dispersion results, rather than other which operate differently.
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