Question

The range of color vision is optimized to respond to most common wavelengths emitted from the sun--approximately the midpoint of the visual wavelengths, 5000 Angstroms.

If the sun’s temperature increases or decreases by a factor of 2, how would the range of wavelength sensitivity of eyesight have to change to respond to the most common wavelengths in those new conditions?

Answer 1

Considering the Sun as a black body, it must obey Wien's displacement law for the peak of the radiation curve.