Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoThermal ExpansionMedium2 minQB

PhysicsMediummultiple choice

A thin cylindrical metal rod is bent into a ring with a small gap as shown in the figure. On heating the system:

Source Q8 diagram

Answer:

C, D

Solution:

Uniform expansion scales every length by
$1 + α Δ T$
$r^{'} = r (1 + α Δ T)$
and
$d^{'} = d (1 + α Δ T)$
Angles stay unchanged.

Stream:JEESubject:PhysicsTopic:Heat & ThermoSubtopic:Thermal Expansion

⏱ 2mℹ️ Source: QB

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