Physics - Heat & Thermo Question with Solution | TestHub
PhysicsHeat & ThermoHeat TransferMedium2 min
PhysicsMediumsingle choice
In a cold climate a deep lake freezes first at its surface. Which statement gives the correct reason?
Options:
Answer:
B
Solution:
Cooling water above C contracts and sinks, so convection mixes the lake. Below C water expands on cooling, so the colder layer stays at the top, reaches C first and freezes. B.
Subject:PhysicsTopic:Heat & ThermoSubtopic:Heat Transfer
⏱ 2m
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