Planck's Relation describes the relationship between the energy of a photon and its frequency, given by the equation $$E = h u$$, where $$E$$ is the energy, $$h$$ is Planck's constant, and $$ u$$ is the frequency. This fundamental principle highlights how electromagnetic waves, including light, carry energy quantized in discrete amounts proportional to their frequency, influencing various aspects of quantum mechanics and electromagnetic wave behavior.
congrats on reading the definition of Planck's Relation. now let's actually learn it.