Final answer:
The formula relating the incident intensity to the reflected intensity is b) Ireflected = 1/2 × Iincident. The intensity reflection coefficient, a measure of the ratio of the intensity of the reflected wave relative to the incident wave, is 1/2.
Step-by-step explanation:
The relationship between the intensity of the incident wave and the intensity of the reflected wave in a physical context, such as light reflecting off a surface, is determined by the intensity reflection coefficient, often denoted by the symbol a. The formula relating the incident intensity (Iincident) to the reflected intensity (Ireflected) is b) Ireflected = 1/2 × Iincident. The intensity reflection coefficient (a) is defined as the ratio of the intensity of the reflected wave relative to the incident wave. In this case, the intensity reflection coefficient is equal to 1/2, which means that the reflected intensity is half of the incident intensity.