A black body is at a temperature of $5760\ K$. The energy of radiation emitted by the body at wavelength $250\ nm$ is $U_1$, at wavelength $500\ nm$ is $U_2$ and that at $1000\ nm$ is $U_3$. Wien's constant, $b = 2.88 \times 10^6\ nm\ K$. Which of the following is correct?
NEET 2016, Medium
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According to $Wein's$ displacement law
${\lambda _m} = \frac{b}{T} = \frac{{2.88 \times {{10}^6}\,nm\,K}}{{5760\,K}} = 500\,nm$
Clearly from graph, ${U_1} < {U_2} > {U_3}$
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