Black body radiation

The object that can absorb all of the wavelength of light is called Black body. The emission of wavelength of light that was absorbed by black body is called Black body radiation.

Black body radiation is a thermal radiation. How much the energy will radiates depend on the temperature of the surface of the black body.

There have some laws concerning radiated energy and temperature.

Stafen Boltzmann law According to stafen Boltzmann law the radiated energy from the surface of the black body is proportional to the fourth power of temperature.

Wein displacement law says the radiated energy wavelength will be inversely proportional to the fifth power of temperature.