Planck's law
1
8.0
- noun
- /plæŋks lɔ/
- Specialized
- According to Planck's law, energy is quantized.
Examples
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According to Planck's law, the energy of a photon is directly proportional to its frequency.
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Scientists used Planck's law to accurately predict the spectrum of radiation emitted by a black body.
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The development of Planck's law marked the beginning of quantum physics.
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The physicist explained Planck's law during the lecture.
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According to Planck's law, the energy of electromagnetic radiation is quantized based on its frequency.
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Planck's law helps explain why hotter objects emit more energy at higher frequencies.
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When applying Planck's law to a black body, the emitted radiation will peak at a specific frequency determined by its temperature.
Synonyms
1
8.8
A rule that shows how much light or heat a perfect object gives at each color for a given temperature
Surface Forms
Morphology
Planck's + law
The phrase is an eponymous scientific name: knowing 'Planck's' as a possessive/name plus 'law' only tells a learner that this is a scientific principle associated with someone named Planck, but it does not allow them to derive the technical content (quantization of electromagnetic energy). This gives partial information (author + type of thing) but the specific meaning is domain-specific and unpredictable from the constituents alone.
Etymology
Planck's law is named after the scientist Max Planck, who discovered that light and heat come in tiny 'packets' instead of a smooth flow. So, Planck's law says each packet has energy that gets bigger when the light's 'frequency' is higher.