History of Science
Planck's constant is a fundamental physical constant denoted by the symbol 'h', which describes the scale of quantum effects. It is crucial in the field of quantum mechanics as it sets the relationship between the energy of a photon and its frequency, represented by the equation $$E = h u$$, where 'E' is energy and '$$\nu$$' is frequency. This constant marks a pivotal shift from classical physics to quantum physics, influencing our understanding of atomic and subatomic processes.
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