Explain spectral distribution of a blackbody radiation.


Question: Explain spectral distribution of a blackbody radiation.

The spectral distribution of blackbody radiation is a curve that represents the intensity of radiation emitted at each wavelength or frequency by an object that absorbs all electromagnetic radiation that falls on it. This curve, also known as the Planck curve, depends solely on the temperature of the object emitting the radiation. At low temperatures, most of the radiation emitted is in the infrared range, while at higher temperatures, the peak of the curve shifts to shorter wavelengths and the object emits more visible and ultraviolet light. The shape of the curve is determined by the peak wavelength, which moves to shorter wavelengths as the temperature increases, and the rate of fall-off on either side of the peak. The total amount of radiation emitted is represented by the area under the curve. The spectral distribution of blackbody radiation has numerous applications in science and technology, including in the study of stars and the design of high-temperature materials.


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