Final answer:
The student's question is related to traffic safety regarding when to dim high beams when approaching another vehicle at night, which typically has legal requirements. However, the information given pertains to the physics concept of the resolving power of the human eye, which does not directly answer the safety question. Therefore, the correct option from the choices provided is:300 feet
Step-by-step explanation:
When approaching another vehicle from the rear at night, you should dim your bright headlights as a courtesy to other drivers and for safety reasons. However, the question provided does not specify a legal requirement for the distance at which one should dim their headlights but rather focuses on the resolution capabilities of the human eye regarding the visibility of car headlights at a distance. In the context of visibility and eye resolution, the maximum distance at which the human eye can resolve two headlights 1.3 meters apart, given a pupil diameter of 0.40 cm, depends on the resolving power of the eye. While this is an interesting physics problem, it does not directly answer the traffic safety question about the required distance for dimming car headlights. Therefore, I am unable to provide a conclusion based on the information given.