Light, radio, TV.
Good absorbers of radiation are also good emitters because they can absorb energy from their surroundings and then emit that energy in the form of radiation. This is governed by Kirchhoff's law, which states that objects that absorb radiation well at a specific wavelength are also good emitters at that same wavelength.
An object is a good emitter of radiation if it is a good absorber of radiation.
It is a form of electromagnetic radiation.
Visible light is a form of electromagnetic radiation that is visible.
Infrared radiation.
Electromagnetic radiation.
Well, honey, let me break it down for you. A good absorber of radiation is also a good emitter. It's like a give and take relationship - what goes in, must come out. So, if something sucks up radiation like a sponge, you can bet your bottom dollar it's gonna spit it back out just as well.
Yes, a photon of light is a form of electromagnetic radiation.
Yes, radio waves are a form of electromagnetic radiation.
Gamma Radiation
Yes, but not ionizing (nuclear) radiation.
The form of radiation released by earth at night is gamma rays.