Final answer:
When driving in fog, it is important to use low beam headlights for better visibility and to avoid glare and reflection off the fog. High beam headlights should be avoided as they can reduce visibility and create a dangerous situation. Driving at a slower speed and keeping a safe distance from the vehicle in front is also advised.
Step-by-step explanation:
When driving in fog, it is important to use the correct setting for your headlights to maximize visibility. In foggy conditions, using low beam headlights is recommended. Low beams provide a wider, shorter beam of light that helps prevent glare and reflection off the fog. They also help other drivers see you more clearly.
High beam headlights, on the other hand, should be avoided in foggy conditions. High beams produce a brighter, more intense light that can reflect off the fog and reduce visibility, creating a dangerous situation for both you and other drivers. The light from high beams can also cause glare, making it difficult for you to see the road ahead.
By using low beam headlights in fog, you can improve your visibility and reduce the risk of accidents. It is also a good idea to drive at a slower speed and increase the distance between you and the vehicle in front of you to allow for more reaction time.