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If a blackbody has a temperature of 373 K, what fraction of the electromagnetic power that...

If a blackbody has a temperature of 373 K, what fraction of the electromagnetic power that it emits consists of photons with energies in the range of 0.50 eV ± 0.01 eV?

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The power of friction of electromagnetic power that consists photon in the energy range 0.50 eV ± 0.01 eV is 1/160 or 0.0625%.

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