Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoHeat TransferMedium2 min
PhysicsMediummultiple choice

A thin spherical shell and a thin cylindrical shell (closed at both ends) have the same volume. Both shells are filled with water at the same temperature and are exposed to the same atmosphere. The initial temperature of water is slightly greater than that of the surroundings. Then at the initial moment:

Options:(select one or more)

Answer:
D
Solution:

For a given volume the sphere has the least surface area, so the cylinder has the larger area and radiates faster (A is false). Same mass of water in each, so the cylinder also cools faster (B false). C reverses both. Option D.

Subject:PhysicsTopic:Heat & ThermoSubtopic:Heat Transfer
⏱ 2m

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