Final answer:
This physics question relates to the Inverse Square Law for Light, where light intensity diminishes in proportion to the square of the distance from the source. Without specific intensity values, we can only discuss the concept generally, stating that light intensity decreases more rapidly with increasing depth.
Step-by-step explanation:
The question concerns the average rate at which light intensity decreases as one moves deeper into a body of water, specifically from a depth of 5 m to a depth of 14 m. This is a physics problem that relates to the Inverse Square Law for Light, which states that the intensity of light is inversely proportional to the square of the distance from the source of light. According to this law, if you double the distance, the intensity becomes one-fourth (distance squared), if you triple the distance, the intensity becomes one-ninth, and so on.
To calculate the average rate of decrease in intensity, you would typically need the intensity values at both depths. However, since these are not provided, we can only discuss the concept qualitatively. As Caleb descends from 5 m to 14 m, the light will spread out over a larger area, following the principle that the area increases with the square of the distance. Therefore, the deeper Caleb goes, the more the light intensity will decrease, and this decrease is more pronounced with increasing depth because of the squared relationship.