In the figure, the distribution of energy density of the radiation emitted by a blackbody at a given temperature is shown. The possible temperature of the black body is
1. 1500 K
2. 2000 K
3. 2500 K
4. 3000 K

Weints law
[
begin{array}{l}
lambda=1.5 mathrm{mm}
begin{aligned}
lambda T=& 2.9 times 10^{-3} mathrm{m} cdot mathrm{K}
T=& frac{2.9}{1.5} times 10^{-3} mathrm{lo}^{-3} mathrm{con} mathrm{m} cdot mathrm{k}
&=2 times 10^{3} mathrm{k}
end{aligned}
end{array}
]
(2) ( Ans )