" The spectrum from a black body radiation is a : "

From a black body, radiation is not :

What is black body radiation ?

State Stefan's law. Sketch graphs showing the distribution of energy in the spectrum of black body radiation at three temperatures, and indicate which curve corresponds to the highest temperature.

State law of black body radiation.

The phenomenon of black body radiation was explained satisfactorily by

The phenomenon of black body radiation was explained satisfactorily by

which of the following is NOT the property of black body radiations?