A perfectly black body emits radiation at temperature $T_{1}$ K. If it is to radiate 16 times this power, its temperature $T_{2}$. will be
$T_{2} = 16 T_{1}$
$T_{2} = 8 T_{1}$
$T_{1} = 4 T_{1}$
$ T_{2} = 2 T_{1}$
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