The rate of loss of heat by radiation from a body at 30 0 ∘ C is R . Find the ratio of the radiation at 60 0 ∘ C to R (two decimals).

T goes from 573 K to 873 K. The ratio is ( 573 873 ) 4 = 5.39 .

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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoHeat TransferMedium2 min

PhysicsMediumnumerical

The rate of loss of heat by radiation from a body at $30 0^{\circ}$ C is $R$ . Find the ratio of the radiation at $60 0^{\circ}$ C to $R$ (two decimals).

Answer:

5.39

Solution:

$T$ goes from 573 K to 873 K. The ratio is $(\frac{873}{573})^{4} = 5.39$ .

Subject:PhysicsTopic:Heat & ThermoSubtopic:Heat Transfer

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