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The temperature of a perfect black body is $727^{\circ}C$ and its area is $0.1\: m^2$. If Stefan's constant is $ 5.67 \times 10^{-8} W/m^2K^4$, then heat radiated by it in $0.3$ minutes is :

$\begin {array} {1 1} (1)\;1701 & \quad (2)\;17010 \\ (3)\;102060 & \quad (4)\;102.06 \end {array}$

1 Answer

(4) 102.06
answered Nov 7, 2013 by pady_1
 

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