Relationship between Wavelength, Temperature, and Infrared Energy

All objects emit infrared rays at different wavelengths depending on their temperature and material.
The relationship between wavelength and infrared energy depending on temperature is shown in the following graph.

• 

  The relationship between wavelength, temperature, and infrared energy can be summarized in the following manner: As temperature increases, the infrared energy emitted at short wavelengths becomes stronger. As temperature decreases, the energy emitted becomes weaker. Meanwhile, at longer wavelengths, the infrared energy emitted is consistently weak from low to high temperatures.