Which challenge arises when light encounters impurities within optical fiber?

💡 Explanation

Modal dispersion increases because impurities cause light rays to refract and take different paths through the fiber via Rayleigh scattering. Therefore, signals spread, rather than being contained, because impurities disrupt the uniformity which is assumed in pure optical transmission.

• Which risk increases when the condenser of a residential heat pump is significantly undersized for the specified refrigerant?
• Which outcome occurs when torsional load on long I-beams supporting a heavy bridge deck exceeds the critical threshold?
• Which issue commonly arises when biodiesel fuel corrosively degrades fuel system components?
• Which risk disproportionately increases during prolonged single-phasing in a three-phase distribution transformer bank?
• Which consequence results when aircraft automatic landing systems experience excessive radio interference during final approach?
• Which consequence results when temperature variation degrades LiDAR sensor accuracy?