Определение planck's constant в Английский Язык Английский Язык словарь
the constant of proportionality relating the energy and frequency of a photon (6.626 x 10-34 joule-seconds); also related to the indeterminacy limit in the Heisenberg uncertainty principle
The constant of proportionality relating the energy of a photon to the frequency of that photon. Its value is approximately 6.626 × 10- joule-seconds