Physics - Heat & Thermo Question with Solution | TestHub
PhysicsHeat & ThermoThermal ExpansionMedium2 minQB
PhysicsMediumassertion reason
Assertion: The gap in a freely heated uniform metal ring widens.
Reason: Every linear dimension, including the gap, scales with the thermal expansion factor.
Options:
Answer:
A
Solution:
The gap behaves like a piece of the metal itself: all lengths, including the gap, scale by . The ring also becomes larger. The gap therefore increases, not decreases (the ends do not move toward each other). Both are true. The Reason gives the physical cause of the Assertion. Correct option: (A).
Subject:PhysicsTopic:Heat & ThermoSubtopic:Thermal Expansion
⏱ 2mℹ️ Source: QB
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