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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoHeat TransferMedium2 min

PhysicsMediumsingle choice

Consider two hot bodies $B_{1}$ and $B_{2}$ which have temperatures $10 0^{\circ}$ C and $8 0^{\circ}$ C respectively at $t = 0$ . The temperature of the surroundings is $4 0^{\circ}$ C. The ratio of the respective rates of cooling $R_{1}$ and $R_{2}$ of these bodies will be:

Options:

Answer:

Solution:

The rate of cooling $\propto$ excess temperature: $60 : 40 = 3 : 2$ . A.

Subject:PhysicsTopic:Heat & ThermoSubtopic:Heat Transfer

⏱ 2m

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