Planck’s Law

Planck’s law describes the spectral radiance (the energy contained in electromagnetic radiation at each frequency) radiated by a black body of matter as a function of the temperature of the surface of the body (in degrees Kelvin). Note that when temperature is increased, the spectral radiance is increased for each and every frequency and the peak spectral radiance moves to a higher frequency.


Posted on April 28th, 2021    © 2021 Peter L. Ward. All Rights Reserved