Based on the highest wavelength in the cosmic microwave background spectrum, rank these eras from left to right, from shortest to longest, 500,000 years after the Big Bang.
Peak Wavelength - The maximum wavelength at which a light source's radiometric emission spectrum is observed is referred to as the peak wavelength. Simply put, it represents photo-detectors rather than the human eye's perception of any emission from the light source.
The temperature can be calculated using the Wien displacement law and the peak wavelength. On a chromaticity diagram, the variation in apparent hue of stars at various temperatures can be traced.
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