Planckovou

Planckovou, also known as Planck's constant, is a fundamental constant in quantum mechanics that relates the energy of a photon to its frequency. Its symbol is denoted by the letter 'h'. The value of Planck's constant is approximately 6.62607015 x 10^-34 joule-seconds.

Max Planck first introduced this constant in 1900 as part of his theory of black-body radiation. He proposed that energy is not emitted or absorbed continuously but in discrete packets called quanta. The energy of a quantum of light, or a photon, is directly proportional to its frequency, with Planck's constant being the constant of proportionality. This relationship is expressed by the equation E = hf, where E is the energy, h is Planck's constant, and f is the frequency.

Planck's constant plays a crucial role in many areas of physics, including the photoelectric effect, atomic structure, and quantum field theory. It signifies the smallest possible unit of action in the universe, a concept central to quantum mechanics. The reduced Planck constant, denoted by ħ (h-bar), is equal to h divided by 2π and is often used in equations involving angular momentum and wave functions. The discovery and subsequent understanding of Planck's constant revolutionized our understanding of the physical world at its most fundamental level, paving the way for the development of quantum physics.