Black body

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Black body is a physical body that can absorb all kinds of electromagnetic radiation. The unique properties of black body is that it emits radiation in thermal equilibrium so called black body radiation. Emitting of black body radiation is followed by planks law.

Ideal black body have two unique properties

It is an ideal emiter. Emit radiation of any frequency.

It is a diffused emitter. It emit isotropically, that is independent with direction



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