No, the Stefan-Boltzmann law does not provide a direct way to measure the power radiated by specific wavelengths only. The Stefan-Boltzmann law describes the total power radiated by a black body as a function of its temperature. It states that the total power radiated per unit surface area (P) is proportional to the fourth power of the body's absolute temperature (T):
P = σ * A * T^4
where:
- P is the total power radiated (in watts),
- σ is the Stefan-Boltzmann constant (approximately 5.67 × 10^−8 W/(m^2·K^4)),
- A is the surface area of the radiating body (in square meters), and
- T is the absolute temperature of the body (in Kelvin).
The Stefan-Boltzmann law does not specify the power radiated at specific wavelengths. It gives the total power radiated over all wavelengths for a given temperature. If you want to measure the power radiated at specific wavelengths, you would need to consider other laws and principles, such as Planck's law or the spectral radiant exitance.