Planck's radiation law
- noun
- /plæŋks ˌreɪdiˈeɪʃən lɔ/
- Specialized
:
ley de radiación de Planck
- The discovery of Planck's radiation law was a milestone in the development of quantum theory.
Examples
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Understanding Planck's radiation law helped resolve discrepancies between observed and theoretical black body radiation curves.
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According to Planck's radiation law, hotter objects emit more energy.
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Scientists use Planck's radiation law to predict the spectrum of stars and other celestial bodies.
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The scientist explained Planck's radiation law during the lecture.
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The equation known as Planck's radiation law describes how black bodies emit energy across different wavelengths depending on temperature.
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According to Planck's radiation law, objects with higher temperatures emit greater amounts of radiation than cooler ones.
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Researchers utilize Planck's radiation law to determine the energy distribution radiated by various types of stars.
Surface Forms
Morphology
Knowing 'radiation' and 'law' allows a B1 learner to infer this is an established scientific law about radiation, and the possessive 'Planck's' can be recognised as a name attached to the law (a cross-linguistically common pattern). However, the precise technical meaning (the distribution of energy by wavelength for a black body) is specialized and not recoverable from the constituents alone, so understanding beyond the general idea requires subject knowledge.
Etymology
Planck's radiation law is named after the scientist Planck, who imagined that hot objects give out energy in tiny 'packets' instead of a smooth flow. Think of a hot object throwing small coins of energy in different colors of light, and that image shows why the law tells how much energy comes out at each color.
