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← ScienceWhich risk increases when imperfections limit a fibre optic cable's total internal reflection?
A)Signal attenuation becomes significantly pronounced✓
B)Refractive index reaches critical threshold
C)Modal dispersion remains relatively linear
D)Numerical aperture stays virtually constant
💡 Explanation
Increased imperfections cause scattering via Rayleigh scattering, a form of wave propagation, because they reduce the efficiency total internal reflection, therefore signal attenuation increases rather than signal integrity which would occur with uniform material.
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