Blackbody Radiation
Find the peak wavelength (Wien's law) and radiated power (Stefan–Boltzmann law) of a hot object from its temperature, free online.
À propos de cette calculatrice
Wien's displacement law gives the peak wavelength λ = 2.8978×10⁻³ m·K ÷ T. The Stefan–Boltzmann law gives the power radiated per unit area j = εσT⁴, with σ = 5.6704×10⁻⁸ W/m²K⁴. The Sun (5772 K) peaks near 502 nm.