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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoThermal ExpansionMedium2 minQB

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The coefficient of linear expansion of an inhomogeneous rod changes linearly from $α_{1}$ to $α_{2}$ from one end to the other end of the rod. The effective coefficient of linear expansion of rod is:

Options:

Answer:

Solution:

$α (x) = α_{1} + \frac{α _{2} - α _{1}}{L} x; Δ L = \int_{0}^{L} α (x) d x Δ T = \frac{α _{1} + α _{2}}{2} L Δ T$ . Answer (B).

Subject:PhysicsTopic:Heat & ThermoSubtopic:Thermal Expansion

⏱ 2mℹ️ Source: QB

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