What is the formula for finding Imax, the intensity of the transmitted energy at a point in space?

The formula for finding Imax, which represents the intensity of the transmitted energy at a point in space, is given by the equation Imax = Pt/Ab. In this context, Pt denotes the total power transmitted, while Ab refers to the area over which that power is distributed.

Intensity, which is defined as power per unit area, follows the principle that as power is spread over a larger area, the intensity decreases. Thus, when you divide the total transmitted power (Pt) by the area (Ab), you obtain the intensity at a particular point in space. This relationship underscores the concept in electromagnetic theory that intensity is inversely proportional to the area when power remains constant.

The other options do not accurately represent this relationship, as they either multiply the parameters or combine them inappropriately, failing to adhere to the definition of intensity.