Which statement is true regarding electromagnetic radiation?

The statement that higher frequency correlates with higher energy is correct because of the relationship defined by the equation (E = h \cdot f), where (E) is energy, (h) is Planck's constant, and (f) is frequency. This equation illustrates that energy is directly proportional to frequency; as the frequency of electromagnetic radiation increases, the energy associated with that radiation also increases.

In the context of the electromagnetic spectrum, this means that higher frequency radiation, such as gamma rays and X-rays, carries more energy than lower frequency radiation, like radio waves. The distinction is significant in many applications in physics and medicine, including radiology, where the energy of photons affects how they interact with matter.

In contrast, other options present inaccurate correlations. Higher frequency does not correlate with longer wavelength, as wavelength decreases with increasing frequency. Lower frequency does not correlate with higher energy; in fact, it is the opposite, as lower frequencies are associated with lower energy. Lastly, frequency and energy are inherently related through the established physics of electromagnetic radiation, making the notion of them being unrelated incorrect.