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Radiation Temperature Formula:
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Radiation Temperature is defined as the temperature of the incident radiation. It represents the temperature of a black body that would emit the same total radiant power as the radiation being measured.
The calculator uses the radiation temperature formula:
Where:
Explanation: This formula is derived from Wien's displacement law, which states that the product of the wavelength of maximum emission and the temperature is constant.
Details: Calculating radiation temperature is crucial in various fields including astronomy, thermodynamics, and materials science. It helps determine the temperature of stars, heated objects, and radiation sources based on their spectral characteristics.
Tips: Enter the maximum wavelength in meters. The value must be valid (wavelength > 0).
Q1: What is the significance of the constant 2897.6?
A: The constant 2897.6 μm·K is Wien's displacement constant, which relates the wavelength of maximum emission to the temperature of a black body.
Q2: What are typical radiation temperature values?
A: Radiation temperatures vary widely depending on the source. For example, the sun has a radiation temperature of approximately 5800K, while cooler objects have lower radiation temperatures.
Q3: How is maximum wavelength determined?
A: Maximum wavelength is typically determined through spectral analysis where the peak of the emission spectrum is identified.
Q4: Are there limitations to this calculation?
A: This calculation assumes black body radiation and may not be accurate for non-black body radiators or in cases where the emission spectrum doesn't follow Planck's law perfectly.
Q5: Can this formula be used for all types of radiation?
A: The formula is specifically derived for thermal radiation and works best for objects that approximate black body radiators.