Question

list the features of black body radiation​

Answer 1

Answer:

A black body is an idealized physical body that absords electromagnetic radiation,regardless of frquency or angle of incidence. It has two features:-

1. It is an ideal emmiter: at every frequency it emits as much more thermal radiative energy as any other body at the same temperature.

2.It is a diffuse emitter: measured per unit area perpendicular to the direction, the energy is radiated isotropically, independent of direction.

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Answer 2

$\huge\underline\mathbb\color{plum}{Answer}$

❤ At a given temperature, the emitted energy is not distributed uniformly. Hence energy for  different wavelengths is different.

❤ At a given temperature for a particular wavelength λm, the energy emitted is maximum.

❤ As temperature increases, the value of λm decreases.

❤ The total area under the curve gives the total energy emitted. Hence total energy emitted by the perfect black body increases as temperature increases.