Answer:
T = 4260.29 K
Explanation:
According to Wien's displacement we can write that
[tex]\lambda_{max}=\frac{b}{T}[/tex]
where b is constant
b= 2.897 ×10^{-3} m.K
for the red wavelength is about 680 nm
therefore, to calculate temperature of these coils.
[tex]T=\frac{b}{\lambda_{max}}[/tex]
putting the value we get
[tex]T=\frac{2.897 ×10^{-3}}{680\times10^{-9}}[/tex]
T = 4260.29 K
