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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2009
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Q)

A black body at $227^{\circ}C$ radiates heat at the rate of $7cals/cm^{2}s$. At a temperature of $727^{\circ}C$, the rate of heat radiated in the same units will be :


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( A ) 60
( B ) 50
( C ) 80
( D ) 112

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