Physics - Heat & Thermo Question with Solution | TestHub
PhysicsHeat & ThermoHeat TransferMedium2 min
PhysicsMediumnumerical
A solid sphere of radius and a hollow sphere of the same material, outer radius and inner radius , are heated to the same temperature and cool in the same surroundings. Find the ratio of the initial rate of fall of temperature of the hollow sphere to that of the solid one (two decimals).
Answer:
1.14
Solution:
. The outer area is the same. The mass is in the ratio . Ratio of rates = .
Subject:PhysicsTopic:Heat & ThermoSubtopic:Heat Transfer
⏱ 2m
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