Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoHeat TransferMedium2 min

PhysicsMediumsingle choice

The amount of thermal radiation emitted from one square centimetre area of a black body in one second at a temperature of 1000 K is:

Answer:

Solution:

$P = σ T^{4} = 5.67 \times 1 0^{- 8} \times 1 0^{12} = 5.67 \times 1 0^{4}$ W $m^{- 2}$ . Per $c m^{2}$ this is $5.67$ W, so 5.67 J in 1 s. A.

Subject:PhysicsTopic:Heat & ThermoSubtopic:Heat Transfer

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