The problem of lighting distance of motor vehicles at night (driving test subject 1), please explain the following topics (principles and so on), thank you!

1, because there is nothing to block the light at the top of the slope, and it is impossible for the light to go from far to near.

2, because the car is downhill, the light is downward. At the end, the distance between the light and the road is the shortest, so it is far and near.

It's because when the mountain turns, the light will deviate from the center of the road.

It is because the height of the station is far away that the light changes from near to far when you just go downhill. But the closer you get to the bottom, the closer the lights will be.

5, because if it is downhill, only the lights at the bottom of the valley are far and near.

Use motor vehicle lights at night

For vehicles, the lights are as important as people's eyes, and the normal opening or closing is related to whether the driver can safely drive the vehicle to the destination. Simply put, lighting has two functions: illumination and signal. One is to provide lighting for drivers and a good view when the weather is bad or cloudy. Another important function is to play a warning role in order to remind the rest of the vehicles and personnel.