Instructions: Enter the temperature in kelvins (K) and the wavelength boundaries in microns (μm). Then click Go. The program will calculate the fraction of blackbody radiation from wavelength λ1 to λ2 at temperature T. Click Reset to start over. Note: Approximation is only accurate to about five (5) significant digits, and may be inaccurate for extreme input values.
T:
λ1:
λ2:
D =
Author: BPL
Written: 04/12/2023
Revised: 04/13/2023