Black body

{
  "id": "MLC-T-CHM-001355",
  "term": "Black body",
  "field": "Chemistry",
  "definition": "An idealised body that absorbs all electromagnetic radiation falling on it, whatever the wavelength or angle of incidence, and neither reflects nor transmits any. It is also a perfect emitter, and the spectrum of the radiation it gives off depends only on its temperature, as described by Planck's law. A good practical approximation is a small hole in the wall of a closed cavity held at uniform temperature.",
  "subject": "Physical and Biophysical Chemistry",
  "references": [
    "PAC, 2011, 83, 931. 'Glossary of terms used in photocatalysis and radiation catalysis (IUPAC Recommendations 2011)' on page 942 (https://doi.org/10.1351/PAC-REC-09-09-36)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/black-body/"
}