The concept of time dilation is based on the principle that the passage of time can appear to be different for observers in relative motion or different gravitational fields. Time dilation does not directly impact the oscillation of photons between cycles of electrical and magnetic polarity reversals.
When we say that time dilation for photons is zero, we mean that from the perspective of the photon itself, time does not elapse. Photons travel at the speed of light in a vacuum and are massless particles. According to special relativity, as an object with mass approaches the speed of light, its relativistic mass increases, and time dilation occurs. However, since photons travel at the speed of light, they experience time dilation of zero.
The oscillation of photons between cycles of electrical and magnetic polarity reversals is described by the electromagnetic wave nature of light. Photons are quantized units or "packets" of electromagnetic energy. The electromagnetic wave is a self-sustaining wave consisting of electric and magnetic fields that are perpendicular to each other and propagate through space. The oscillation of the electric and magnetic fields occurs in the direction perpendicular to the direction of travel of the photon.
The behavior of photons as electromagnetic waves is described by Maxwell's equations, which are fundamental laws in classical electrodynamics. These equations explain how the electric and magnetic fields interact and propagate through space. The wave nature of light allows photons to oscillate between the electric and magnetic components as they travel from a source to a destination, where they may be absorbed or interact with matter.
Therefore, the oscillation of photons between cycles of electrical and magnetic polarity reversals is a fundamental property of electromagnetic waves, and it is not directly affected by time dilation.