The rectangular surface of area $$8cm$$ x $$4cmof$$ a black body at a temperature of $$1270$$ C emits energy at the rate of E per second. If the length and breadth of the surface are each reduced to half of the initial value and the temperature is raised to $$3270$$ C, the rate of emission of energy will become:

Question

The rectangular surface of area $$8cm$$ x $$4cmof$$ a black body at a temperature of $$1270$$ C emits energy at the rate of E per second. If the length and breadth of the surface are each reduced to  half of the initial value and the temperature is raised to $$3270$$ C, the rate of emission of energy will become:

Infinity Learn · Accepted Answer

Qt ∝ $$AT4$$ $$Q1Q2$$ $$=$$ $$A1A2T14T24$$ $$=$$ $$AA44006004EQ2$$ $$=41681Q2$$ $$=$$ $$81E64$$

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The rectangular surface of area 8cm x 4cmof a black body at a temperature of 1270 C emits energy at the rate of E per second. If the length and breadth of the surface are each reduced to half of the initial value and the temperature is raised to 3270 C, the rate of emission of energy will become:

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