Answer: when it reaches zero Kelvin
Explanation:
In this case, when we talk about radiation, we refer to thermal radiation, which is electromagnetic radiation that is generated by the thermal movement of charged particles in a body or object.
In this context, every body with a temperature greater than absolute zero (0 Kelvin) emits thermal radiation.
However, lowering the temperature decreases the movement and kinetic energy in the body's molecules, causing a decrease in the emitted radiation. Therefore, if a body reaches 0 K it would stop emitting radiation.
