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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoHeat TransferMedium2 min

PhysicsMediumsingle choice

An object is at a temperature of $40 0^{\circ}$ C. At approximately what temperature would it radiate energy twice as fast? The temperature of the surroundings may be assumed to be negligible.

Options:

Answer:

Solution:

$T^{4}$ doubles, so $T = 673 \times 2^{\frac{1}{4}} = 673 \times 1.19 = 800$ K. D.

Subject:PhysicsTopic:Heat & ThermoSubtopic:Heat Transfer

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