Word Pronunciation & Dictionary

planck's constant

Word Rarity Very rare

Frequency: Zipf frequency 1.66 in modern English

Syllables: planck-'s -con-stant
IPA

25

Scrabble Score

15

Letters

4

Syllables

9

Unique Chars

Meaning

name

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

Etymology

Named for Max Planck (1858–1947), German theoretical physicist, who discovered it in 1900.

Synonyms

h

Questions

What does planck's constant mean?: the constant of proportionality (symbol ℎ), relating the energy and frequency of a photon (6.626×10⁻³⁴ joule-second); also related to the indeterminacy limit in the Heisenberg uncertainty principle; the quantum of action
Where does planck's constant come from?: Named for Max Planck (1858–1947), German theoretical physicist, who discovered it in 1900.

How to pronounce planck's constant

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