Which one gives the monochromatic emissive power for black body radiation ?
Correct answer: A. Planck's law
- A. Planck's law
- B. Kirchhoff's law
- C. Wien's law
- D. Stefan-Boltzmann law
Explanation
Planck's law gives the spectral, or monochromatic, emissive power as a function of wavelength and temperature. Stefan-Boltzmann law gives total emissive power over all wavelengths, while Wien's law gives the wavelength of maximum emission.
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