Answer:
O They are inversely proportional.
Step-by-step explanation:
Wien's displacement law asserts that for the black-body radiation the curve for distinct temperatures will peak at distinct wavelengths are varying inversely proportional to the temperatures.
Wien's Law given as

Where
T=Temperature (In Kelvin unit)
λ(max)= Peak wavelength (In cm unit)
Therefore we can say that wavelength and temperature are inversely proportional.