What temperature does an object emit electromagnetic radiation?

Answer 1

At absolute zero (O K or -273.15 degrees Celsius), there is no energy radiated. The wavelength of light emitted is related by Wien's Law:

(lambda) = 3x10^-3/T

Where lambda is the wavelength of the radiation. T is the temperature in Kelvin.

When T approaches 0 K, the wavelength of the emitted radiation approaches infinity (lower energy). At zero, there is no emitted energy.

Answer 2

If you consider the phenomena of fluorescence then there is no temperature dependence at all. Elements near absolute zero will still fluoresce as the high energy light shone on them will elevate electrons to high energy states and they will then descend down through the energy level emitting visible light according to their particular energy states.

Answer 3

Any object with a temperature above absolute zero will emit electromagnetic radiation. This is because, by definition, the atoms within any object at a temperature above absolute zero have energy and are therefore moving. Since atoms are at least partly composed of charged particles, then these charged particles must be moving too, and moving charges, as explained by Maxwell's equations, emit electromagnetic radiation.

Answer 4

the higher the temperature, the more electromagnetic energy being radiated