Planck constant

The Planck constant is a fundamental value in physics that describes the smallest possible amount of energy that can be gained or lost by a quantum system, like an atom or a photon. It acts as a bridge between energy and frequency, indicating that energy is quantized, not continuous. In simple terms, it sets the scale for quantum effects, showing that energy occurs in tiny, discrete packets rather than any arbitrary amount. This constant is key to understanding phenomena at very small scales and forms the foundation of quantum mechanics.