According to Wien’s law
λm T = constant
$\dfrac{\lambda_{m}}{T}$ = constant
$\dfrac{T}{\lambda_{m}}$ = constant
T + λm = constant
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The sun emits light with a maximum wavelength of 510 nm while another star X emits light of maximum wavelength of 350 nm. What is the ratio of the surface temperatures of the sun and the star?