+Planck's constant, denoted as *h*, is a fundamental physical constant in [Quantum Mechanics](/wiki/quantum_mechanics). It links the [Energy](/wiki/energy) of a photon to its frequency, revealing the quantized nature of light and matter at the smallest scales. This tiny, pervasive value forms a cornerstone of the quantum world.
+## See also
+- [Quantum Physics](/wiki/quantum_physics)
+- [Photon](/wiki/photon)
+- [Black Body](/wiki/black_body)
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