English: Comparison of the spectral radiance distributions for a black body at a temperature of 5000 K using three different approaches: Rayleigh-Jeans formula (dashed gray line), Planck’s law (solid blue line), and Wien’s distribution (dotted gray line). The plot shows that the Rayleigh-Jeans formula overestimates the spectral radiance at shorter wavelengths, while the Wien distribution underestimates it at longer wavelengths. Planck’s law provides a more accurate description of the spectral radiance, with a characteristic peak that shifts to shorter wavelengths and increases in height as the temperature increases. The plot also includes a legend for the different approaches.