One particular super red giant star has a surface temperature of 2,822 K. What is the wavelength (in nm) of the spectral maximum in the emission of light by this star?

Question

asked Apr 18, 2020 91.8k views

1 Answer

Douglasrcjames · Answer 1 · 2020-04-24T19:53:49+0000

Answer:

Step-by-step explanation:

Using Weins displacement law:

$\lambda_(max)=(b)/(T)$

where
$\lambda_(max)$ = wavelength

b = constant =
$2898\micro mK$

T = Temperature in Kelvin = 2822 K

Putting the values we get:

$\lambda _(max)=(2898\micro mK)/(2822K)=1.027\micro m$

$1\micro m=10^3nm$

$1.027\micro m=(10^3)/(1)* 1.027=1.027* 10^3nm$

Thus wavelength of the spectral maximum in the emission of light by this star is