English Dictionary

Planck's constant

noun

(physics) the constant of proportionality (symbol h), relating the energy and frequency of a photon (6.626 × 10⁻³⁴ joule-seconds); also related to the indeterminacy limit in the Heisenberg uncertainty principle; the quantum of action

Planck's constant is a fundamental constant in quantum mechanics.

意味（1）

(physics) the constant of proportionality (symbol h), relating the energy and frequency of a photon (6.626 × 10⁻³⁴ joule-seconds); also related to the indeterminacy limit in the Heisenberg uncertainty principle; the quantum of action