When driving through fog, it is best to use low beams. Is this statement true or false?

• A. False.
• B. Hazard lights only.
• C. High beams are better.
• D. True.

Answer: (D)

In fog, light behaves differently because the tiny droplets scatter and reflect it. Low beams point the light toward the road, which reduces the glare that comes back at you and helps you see the surface, lane markings, and vehicles ahead more clearly. Using high beams in fog sends bright light into the fog itself, creating a glare that actually reduces contrast and vision. So the best approach is to use low beams (and, if available, fog lights) to enhance near-field visibility while minimizing backscatter. Hazard lights aren’t suitable for normal driving in fog; they’re meant for emergencies and can confuse other drivers. Slow down and increase following distance as well to stay safe in poor visibility.