A) Planck's law
B) Wien's displacement law
C) Rayleigh-Jeans law
D) Kirchhoff?s law
Correct Answer: B
Solution :
The surface temperature of the stars is determined using Wien's displacement law. According to this law, \[{{\lambda }_{m}}T=b\] where b is Wien's constant whose value is\[2.898\times {{10}^{-3}}mK\].
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