Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoThermal ExpansionMedium2 minQB

PhysicsMediumsingle choice

Passage / Comprehension

Four rods $A, B, C, D$ of the same length and material, but of radii $r, 2 r, 3 r, 2 r$ , respectively, are held in parallel between two rigid walls. Their temperatures are increased through the same range. If the rods do not bend, answer the following questions.

The stresses in rods A, B, C and D are in the ratio:

Options:

Answer:

Solution:

Each fixed rod develops thermal stress
$σ = Y α Δ T$
The material and temperature change are the same.
Stress ratio is $1 : 1 : 1 : 1$

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

⏱ 2mℹ️ Source: QB

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