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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoThermal ExpansionMedium2 minQB

PhysicsMediumsingle choice

Two rods with expansion coefficients $α_{1}, α_{2}$ and Young moduli $Y_{1}, Y_{2}$ are fixed between rigid massive walls. For the same temperature rise without bending, their thermal stresses are equal if:

Options:

Answer:

Solution:

$σ_{i} = Y_{i} α_{i} Δ T$ .

$Y_{1} α_{1} = Y_{2} α_{2} . \frac{Y _{1}}{Y _{2}} = \frac{α _{2}}{α _{1}} .$

Subject:PhysicsTopic:Heat & ThermoSubtopic:Thermal Expansion

⏱ 2mℹ️ Source: QB

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