Answer:
c) Determine the surface temperature of a star
Explanation:
Wien's Law:
It states that for a black body wavelength is inverse proportional to the temperature or we can say that temperature is inverse proportional to the wavelength.
Form Wien's Law
[tex]\lambda =\dfrac{2.88}{T}\ mm[/tex]
Where T is the temperature in Kelvin
λ is the wavelength.
So by measuring the wavelength we can find the temperature of star by using Wein's law.
So our option C is correct,..
