Question
A light source is shining on a vertical surface or a slanted surface as shown below. Which statement is correct?
Multiple choice question.
A)
The light energy that hits the vertical surface is stronger because it is concentrated on a smaller area.
B)
The light energy that hits the vertical surface is weaker because it is concentrated on a smaller area.
C)
The light energy that hits the slanted surface is stronger because it is concentrated on a larger area.
D)
The light energy that hits the slanted surface is stronger because it is concentrated on a smaller area.
Multiple choice question.
A)
The light energy that hits the vertical surface is stronger because it is concentrated on a smaller area.
B)
The light energy that hits the vertical surface is weaker because it is concentrated on a smaller area.
C)
The light energy that hits the slanted surface is stronger because it is concentrated on a larger area.
D)
The light energy that hits the slanted surface is stronger because it is concentrated on a smaller area.
Answers
GPT-4o mini
The correct statement is:
**A)** The light energy that hits the vertical surface is stronger because it is concentrated on a smaller area.
When light hits a surface, the intensity (or energy per unit area) is greater when the light is concentrated on a smaller area. In contrast, if the same amount of light is spread over a larger area, the intensity will be weaker. Therefore, the vertical surface, when illuminated directly, will receive more concentrated light as compared to a slanted surface receiving the same amount of light over a larger effective area.
**A)** The light energy that hits the vertical surface is stronger because it is concentrated on a smaller area.
When light hits a surface, the intensity (or energy per unit area) is greater when the light is concentrated on a smaller area. In contrast, if the same amount of light is spread over a larger area, the intensity will be weaker. Therefore, the vertical surface, when illuminated directly, will receive more concentrated light as compared to a slanted surface receiving the same amount of light over a larger effective area.