Question
At night, a lamp appears brighter to someone sitting near it than to an observer across the room.
Which term describes this difference?
interference
frequency
intensity
speed
Answers
GPT-4o mini
The term that best describes the difference in brightness of a lamp perceived by someone sitting near it compared to an observer across the room is **intensity**.
Intensity refers to the amount of energy the lamp emits per unit area, and it decreases with distance due to the spreading of light as it travels. Hence, someone closer to the lamp would perceive it as brighter than someone further away.
Intensity refers to the amount of energy the lamp emits per unit area, and it decreases with distance due to the spreading of light as it travels. Hence, someone closer to the lamp would perceive it as brighter than someone further away.