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English Dictionary
Definition of “h-bar”
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Word Frequency
No usage level data availableh-bar (ˈeɪtʃˌbɑː)
Definitions
noun
- a constant used in quantum mechanics, equal to the Planck constant divided by 2π. It has a value of 1.054571596±0.000000078 × 10--34 joule seconds = Dirac constant
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