The spectrum of a black body at two temperatures $27^oC$ and $327^oC$ is shown in the figure. Let $A_1$ and $A_2$ be the areas under the two curves respectively. The value of $\frac{{{A_2}}}{{{A_1}}}$ is
A$1:16$
B$4:1$
C$2:1$
D$16:1$
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D$16:1$
d (d) Area under given curve represents emissive power and emissive power $\propto T_4 \Rightarrow \,\,A \propto {T^4}$
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