A black rectangular surface of area A emits energy E per second at 27°C. If length and breadth are reduced to 1/3rd of initial value and temperature is raised to 327°C, then energy emitted per second becomes

MHTCET 2016 Physics Solved Paper

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A black rectangular surface of area A emits energy E per second at 27°C. If length and breadth are reduced to

rd of initial value and temperature is raised to 327°C, then energy emitted per second becomes

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