Physics - Heat & Thermo Question with Solution | TestHub
PhysicsHeat & ThermoHeat TransferMedium2 min
PhysicsMediumsingle choice
Two solid spheres of radii and are made of the same material and have similar surfaces. The spheres are raised to the same temperature and then allowed to cool under identical conditions. Assuming the spheres to be perfect conductors of heat, their initial ratio of rates of loss of heat is:
Options:
Answer:
A
Solution:
The heat loss is proportional to the surface area, so the ratio is . A.
Subject:PhysicsTopic:Heat & ThermoSubtopic:Heat Transfer
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