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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoHeat TransferEasy2 min

PhysicsEasyinteger

For the two spheres of $R_{1} = 3$ cm and $R_{2} = 6$ cm in the previous item (same material, same temperature), find the ratio of the initial rate of fall of temperature, $\frac{first}{second}$ .

Answer:

Solution:

The rate of cooling $\propto \frac{area}{mass} \propto \frac{1}{R}$ . The ratio is $\frac{6}{3} = 2$ .

Subject:PhysicsTopic:Heat & ThermoSubtopic:Heat Transfer

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