University:
North Idaho College
Course:
PHYS-211 | Engineering Physics I
Academic year:

2023
Views:

471

Pages:

4
Author:

Hani T.

Black Body Radiation The Concept of Black Body radiation plays a crucial role in demonstrating the inadequency of Classical mechanics with respect to the interaction of matter with Radiation If a Material absorbs all the Radiation incident upon it. it is considered an ideal Black Body. Consider a Material possessing a hollow Cavity Such that when the Radiation enters through the cavity Thus, all of it gets absorbed However, when the Temperature of the material is increased, the Radiation is emitted out of the cavity, Thus The Material Now behaves as an emitter of Radiation. The Radiation arising out of the hollow Cavity (Black Body) at high Temperatures is Known as Black Body Radiation. The Most Noteworthy features of the Black Body Radiation are as follows the energy density of the Black body radiation is independent of the shape and Nature of the cavity. the Temperature of the walls of the cavity dictates the energy density There exists a maximum in the energy density, which is influenced by the Temperature