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Radiation
There are two types:Thermal radiation and Luminescence in the radiation.
Thermal radiation
Thermal radiation is the phenomenon of matter emitting heat from internal energy
in the from of electromagnetic radiation.
It is also called thermal radiation, thermal radiation and radiant heat transfer.
Thermal radiation changes to internal energy by being absorbed by surrounding objects and transferring heat.
The percentage of thermal radiation among various wavelengths along the
spectrum of electromagnetic radiation
is decided by the temperature,type of object,and its state of activeness.
Luminescence
Luminescence is the phenomenon that matter,upon receiving electromagnetic and particle radiation ,
and absorbing energy,emits.
There are two types of luminescence
fluorescence and phosphorescence.
