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What is a black body?
What is a black body?
A black body is an idealized body that allows the whole of the incident radiation incident on it, regardless of frequency, to be absorbed and not escape.
What is the laboratory approximation of a black body?
What is the laboratory approximation of a black body?
A small hole cut into a cavity of a hollow container of iron or copper painted inside with lampblack is a realistic example of a laboratory approximation of a black body.
Why is a black body considered an ideal absorber of incident radiation?
Why is a black body considered an ideal absorber of incident radiation?
A black body is considered an ideal absorber of incident radiation as it absorbs energy at the same rate as it emits energy, due to being in thermal equilibrium with its surroundings.
What is the Stefan-Boltzmann Law related to?
What is the Stefan-Boltzmann Law related to?
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What is the significance of the Planck Law in relation to blackbody radiation?
What is the significance of the Planck Law in relation to blackbody radiation?
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