Answer :

When driving in fog, it is actually advised to use low-beam headlights instead of high-beam headlights. Here's a detailed explanation:

1. Fog and High-Beam Headlights:
- High-beam headlights are designed to project a strong, long-range beam of light that can help see further down the road in normal driving conditions.
- However, in foggy conditions, the high-intensity light from high-beam headlights can reflect off the water droplets in the fog.
- This reflection causes glare, which can significantly reduce overall visibility and make it much harder to see the road ahead.

2. Low-Beam Headlights:
- Low-beam headlights project light downwards and closer to the vehicle, which reduces glare and reflections.
- This setup provides better illumination of the immediate area ahead of the vehicle, helping you to see the road and any obstacles more clearly.

3. Safety Guidelines:
- Most driving safety guidelines recommend using low-beam headlights in foggy conditions to avoid the issues with glare and visibility that high beams cause.

4. Correct Answer:
- Based on the above reasons, turning on high-beam headlights in fog is not advisable.

Therefore, the statement "If you must drive in fog, you should turn on your high-beam headlights for better visibility" is False.