Soo-saarista infrared-ka iyo shucaaca jidhka madow
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I can describe how to investigate the emission of infrared radiation by different surfaces and explain what is meant by a ‘black body’ radiator.
Muuji qoraalka
All bodies (objects) of all temperatures emit and absorb infrared radiation. Hotter bodies emit more IR in a set time.
The range of wavelengths emitted, and their intensities, depend on an object’s temperature.
Good absorbers (e.g. dark and dull surfaces) are also good emitters. Shiny metal surfaces are poor absorbers/emitters.
A black body is a theoretical object that absorbs all of the radiation that falls on it.
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