The surface temperature of the star is 6000 K. What is the wavelength associated with the light emitted by this star?
A)483 nm
B)907 nm
C)311 nm
D)492 nm
E)502 nm

Question

Quizplus · Accepted Answer

Wien's displacement law states that the wavelength of the light emitted by a blackbody is inversely proportional to its temperature. The surface temperature of the star is 6000 K, so the wavelength of the light emitted by the star is:$$\lambda = \frac{b}{T} = \frac{2.898 	imes 10^{-3} \ m \ K}{6000 \ K} = 483 \ nm$$Therefore, the correct answer is A.

The Surface Temperature of the Star Is 6000 K