The spectrum from a black body radiation is a

Explanation

Blackbody radiation is the electromagnetic rediation emitted by a blackbody by virtue of its temperature . It extends over the whole range of wavelenths of electromagnetic waves. The distribution of energy over this entire range as a function of wavelength or frequency is known as the blackbody radiation spectrum.
If `E_(lambda + d lambda`, the energy it emits per unit area per unit time in this wavelength range depends on its absolute temperature T, the wavelength `lambda` and the size of the interval `d lambda`.