A black body is at 72 7 ∘ C . It emits energy at a rate which is proportional to:NEET 2007

According to Stefan's law Rate of radiated energy E ∝ T 4 where T = absolute temperature of a black body ∴ E ∝ ( 727 + 273 ) 4 or E ∝ [ 1000 ] 4

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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoRadiationEasy2 minPYQ_2007

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A black body is at $72 7^{\circ} C$ . It emits energy at a rate which is proportional to:NEET 2007

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Solution:

According to Stefan's law Rate of radiated energy $E \propto T^{4}$ where $T =$ absolute temperature of a black body
$∴ E \propto (727 + 273)^{4} or E \propto [1000]^{4}$

Stream:NEETSubject:PhysicsTopic:Heat & ThermoSubtopic:Radiation

⏱ 2mℹ️ Source: PYQ_2007

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