1.

If intensity (I) versus wavelength (λ) for three identical black bodies at temperature T1, T2 and T3 are shown in figure, then

Answer»

We know that emissive power is 

\(\propto\) T4

According wein's displacement law

\(\lambda_{max}T = constant\)

\(\propto\) \(\frac1{\lambda_{max}}\)

So, We can say

T1 > T2 > T3



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