The wavelength of the peak in the Sun's output spectrum is about 500 nm. If the Sun's surface temperature doubled, what would this peak wavelength become?
A)250 nm
B)500 nm
C)750 nm
D)1000 nm

Question

Quizplus · Accepted Answer

According to Wien's displacement law, the wavelength of the peak of the emission spectrum of a black body is inversely proportional to its temperature. Therefore, if the temperature doubles, the peak wavelength will halve, making the correct answer 250 nm.

The Wavelength of the Peak in the Sun's Output Spectrum