h
2
9.9
- noun
- Specialized
:
constante de Planck
- E equals HF where H is a constant called Planck's constant.
- Planck's constant h
- 24 h
- 1600 h
Heisenberg's uncertainty principle then says that the product of those two is always larger than a constant H bar divided by two.
- Heisenberg's uncertainty principle then says that the product of those two is always larger than a constant H bar divided by two.
Examples
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These constants are C, the speed of light, G the gravitational constant, and H, Planck's constant.
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E equals HF where H is just a constant.
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And so in particular, E equals H times the frequency.
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Here C is the speed of light, and H bar is a constant of nature called Planck's constant.
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Once Planck introduced h into his equation for an energy spectrum, his constant began to appear everywhere.
Academic text (2004) -
Well, there's H bar, the Planck constant, which governs quantum mechanics.
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In fact, there is a well-defined minimum average energy, hr/2, where h is Planck's constant and f is the oscillation frequency.
Academic text (2000) -
The equation E equals h times the frequency describes the energy of a photon.
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In physics, h, known as Planck's constant, is essential for understanding quantum mechanics.
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The formula E equals hF illustrates how Planck's constant relates energy to frequency.
Synonyms
1
8.4
A number that relates the energy of a tiny particle of light to its frequency
Compounds
- Informal
A mild, funny phrase people say instead of swearing when surprised or angry
Surface Forms
Etymology
H is the symbol used for Planck's constant, a number named after the physicist Max Planck. A helpful way to remember h is to think of it as a very small 'hand' that links a particle of light's energy to its frequency, so the energy equals h times the frequency.