Question

The surface temperature of Polaris is about 5973 K. At what wavelength is the peak radiation emitted from Polaris?

Polaris is not a luminous body. Therefore, it does not emit radiation.
550 nm
485 nm
155 nm

Answer 1

485?

Answer 2

\[
\lambda_{max}=\frac{b}{T_{max}},\,b=2.8977721(26)\times10^{-3}\text{ m K}
\]

http://en.wikipedia.org/wiki/Wien%27s_displacement_law

Answer 3

I think that its the one that you chose @hhelpplzzzz

Answer 4

thanks:)