Photon

A Fundamental Particle of LightIn Grade XII Physics, the concept of photons plays a crucial role in understanding modern physics. A photon is a fundamental particle of light that carries energy but has no mass. It is the smallest quantum of electromagnetic radiation and is responsible for phenomena such as the photoelectric effect, Compton scattering, and blackbody radiation.Key Properties of a Photon:It always moves at the speed of light in a vacuum (c = 3 × 10⁸ m/s).It has no rest mass but carries energy and momentum.The energy of a photon is given by E = hν, where h is Planck’s constant and ν is the frequency of light.Photons exhibit both wave-like and particle-like behavior (wave-particle duality).Understanding photons is essential for fields like quantum mechanics, laser technology, and optical communication. Download the detailed notes on photons from the link below to strengthen your concept.For more study materials, visit our Physics Notes Section. Keep learning and exploring!