Final answer:
Bright beams should be used on open roads where there is no other traffic, not specifically after a certain hour, and they should be avoided in rain due to glare. Usage should always consider the presence of other vehicles and road conditions.
Step-by-step explanation:
The correct answer to this question is that bright beams should be used on open roads where there is no traffic. Bright beams, or high-beam headlights on your car, provide more light over a greater distance than low beams, but they must be used cautiously because they can cause significant glare for other drivers, temporarily impairing their vision.
It is important to switch from high beams to low beams when you are approaching or following another vehicle closely to avoid causing visual impairment.
During adverse weather conditions such as rain, it is not advisable to use bright beams because the light can reflect off the raindrops, causing glare and making it harder for you to see. It is best to use low beams in such conditions. Bright beams are not tied to a specific time of night; rather, their usage is context-dependent based on road and traffic conditions.