Final answer:
Stefan's Law is related to electromagnetic radiation and describes how the energy radiated from a blackbody varies with temperature, important in thermodynamics and astrophysics.
Step-by-step explanation:
Stefan's Law, also known as the Stefan-Boltzmann law, is related to electromagnetic radiation. This physical law states that the total energy radiated per unit surface area of a blackbody is proportional to the fourth power of the blackbody's absolute temperature. Specifically, the law is given by the equation P(T) = σ A T^4, where P(T) is the total power radiated, σ is the Stefan-Boltzmann constant, A is the surface area, and T is the temperature in Kelvin. The law describes how hot objects, such as stars, emit radiation across various wavelengths, including ultraviolet light and visible light. This concept is crucial in the fields of thermodynamics and astrophysics where it helps predict the amount of radiant energy emitted by celestial bodies.