Abstract
The visible light part that takes up the proportion change along with the temperature in the blackbody heat radiation. This paper studies that visible light energy take up of the total radiation energy of rate in blackbody radiation. Start with Planck formula and calculate the energy density of the area under the curve by integraling Planck formula.The same method used in the frequency range from for the area under the curve, two area ratio that is seeking. According to this line of thought of our design process we calculate visible light energy take up of the total rate of radiation energy in blackbody radiation. Calculate visible light energy the percentage of the total energy at different temperatures in accordance with written procedures. The discovery obvious visible light energy occupies total energy the percentage to elevate along with the temperature increases. When the temperature achieves certain value,the visible light energy percentage is biggest,then has a downward trend.
Keywords: Black body radiation Visible light Energy Temperature Percentage
