Physics - Heat & Thermo Question with Solution | TestHub
PhysicsHeat & ThermoHeat TransferEasy2 min
PhysicsEasysingle choice
In a thermos flask the vacuum between the double walls mainly prevents heat loss by:
Options:
Answer:
B
Solution:
A vacuum has no particles to carry heat by conduction or convection. Radiation can still cross it, so the walls are silvered to reflect it. B.
Subject:PhysicsTopic:Heat & ThermoSubtopic:Heat Transfer
⏱ 2m
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