Question

The spectral energy distribution of the sum (temperature 6050K) has a maximum at $4753\dot{A}$. The temperature of a star for which this maximum is at $9506\dot{A}$ is

• A. 24200K
• B. 12100K
• C. 6050K
• D. 3025K

Answer 1

The correct option is D 3025K

According to Wein's displacement law:
${\lambda }_{m}T=constant$
so
${\lambda }_1{T}_1={\lambda }_2{T}_2$
$T_2=\frac{{\lambda }_1{T}_1}{{\lambda }_2}=\frac{6050\times 4573}{9506}=3025K$