Physics - Heat & Thermo Question with Solution | TestHub
PhysicsHeat & ThermoHeat TransferMedium2 min
PhysicsMediumsingle choice
A drop of water is sprinkled on a red-hot iron plate. The drop forms a small sphere but does not vaporise immediately. This happens because:
Options:
Answer:
B
Solution:
Part of the drop vaporises quickly and a vapour layer forms between the drop and the plate. Vapour is a poor conductor, so the rest of the drop evaporates slowly (the Leidenfrost effect). B.
Subject:PhysicsTopic:Heat & ThermoSubtopic:Heat Transfer
⏱ 2m
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