Rayleigh–Jeans law

The Rayleigh–Jeans law describes how the energy emitted as electromagnetic radiation from a hot object is distributed across different wavelengths. It predicts that at longer wavelengths (like radio waves), emission increases proportionally with temperature, which matches observations reasonably well. However, at very short wavelengths (like visible light), it suggests the energy would become infinite, which is physically impossible. This discrepancy led to the development of quantum theory. Essentially, the law explains how objects emit light at various energies and is foundational in understanding blackbody radiation before quantum mechanics refined the picture.