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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoHeat TransferEasy2 min

PhysicsEasysingle choice

Two solid spheres of the same material and surface have radii $R_{1} = 3$ cm and $R_{2} = 6$ cm. They are raised to the same temperature. Find the initial ratio of the rates of loss of heat, $\frac{first}{second}$ .

Options:

Answer:

Solution:

The heat loss is proportional to the surface area. The ratio is $(\frac{3}{6})^{2} = 0.25$ . C.

Subject:PhysicsTopic:Heat & ThermoSubtopic:Heat Transfer

⏱ 2m

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