ışıksız cisim

listen to the pronunciation of ışıksız cisim
Türkisch - Englisch
blackbody
a theoretical body, approximated by a hole in a hollow black sphere, that absorbs all incident electromagnetic radiation and reflects none; it has a characteristic emission spectrum
Theoretical surface that absorbs all radiant energy that falls on it, and radiates electromagnetic energy at all frequencies, from radio waves to gamma rays, with an intensity distribution dependent on its temperature. Because all visible light falling on such a surface is absorbed without reflection, the surface will appear black as long as its temperature is such that its emission peak is not in the visible portion of the spectrum. See also absorption
{i} object which absorbs all wavelengths of electromagnetic radiation and is also the most efficient emitter of all wavelengths (Physics)