Final answer:
It is true that using low-beam headlights during daylight can increase your vehicle's visibility from 2,500 feet to 4,700 feet as headlights provide a stronger contrast against the daytime background, enhancing safety.
Step-by-step explanation:
The statement that turning on your low-beam headlights during daylight hours increases the distance your vehicle can be seen from 2,500 feet to 4,700 feet is True. When the headlights on your car are turned on, they make your vehicle more visible to other drivers and pedestrians. This is because the light from your headlights helps to distinguish your vehicle from the background, especially in suboptimal weather conditions or during times when the lighting is not ideal, like dawn or dusk. Moreover, even during clear daylight, the enhancement of your vehicle's visibility can help avoid accidents.
As for how our eyes perceive light, the increase in the area that light must cover is proportional to the square of the distance the light travels. This means that as the distance from the light source increases, the amount of light intercepted by our eyes decreases significantly. Thus, having headlights on increases the likeliness that the light they emit will be captured by other drivers' eyes, making the difference in perceivable distance. When headlights form a directional beam, as in a headlight system, this can efficiently focus the light and improve visibility over greater distances.