• A graph of the energy radiated from a hot object versus wavelength.
• The curve depends on the temperature of the object; note how the wavelength of maximum intensity shifts as the object's temperature changes.
• The colored bands represent wavelengths of visibile light.

Directions:

• Planck's Law —

  The first graph shows the intensity of the blackbody radiation as a function of wavelength (λ) for the selected temperature.

• Wien's Law —

  The peak of the intensity graph occurs at the wavelength λ_max as indicated above.

• Stefan-Boltzmann Law —

  In the second graph, the gray curve represents the power radiated as a function of temperature between 850 K and 8500 K. The blue dot represents the power radiated at the selected temperature.