👉 Intense light particles, or photons, are fundamental constituents of electromagnetic radiation, embodying both energy and momentum. These particles are incredibly small, with wavelengths ranging from about 380 nanometers (violet) to 700 nanometers (red), corresponding to frequencies from approximately 4 × 10^14 Hz to 9 × 10^14 Hz. Photons are massless and travel at the speed of light in a vacuum, approximately 299,792 kilometers per second. Despite their minuscule size, they carry significant energy, proportional to their frequency, as described by Planck's equation \( E = hf \), where \( E \) is energy, \( h \) is Planck's constant, and \( f \) is frequency. This property makes photons incredibly intense when concentrated in a small area or over a short distance, as seen in phenomena like laser beams, which can deliver immense power per unit area. The intensity of light particles is thus a measure of the total energy they carry per unit time, making them both powerful and versatile in applications ranging from medical treatments to telecommunications.
