pâyâ-ye Planck (#)
Fr.: constante de Planck
A physical constant that determines the energy of quantum as a function of its frequency. Denoted by h, and being 6.624 x 10-27 erg-sec, it is of vital importance in quantum physics. The reduced Planck's constant ħ = h / 2π is also called the → Dirac's constant.
reduced Planck's constant
pâyâ-ye Planck-e bâzhâzidé
Fr.: constante de Planck réduite
The Planck's constant divided by 2π and denoted ħ, pronounced h-bar. Also called → Dirac's constant.