Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoThermal ExpansionMedium2 minQB

PhysicsMediumsingle choice

A seconds pendulum clock correct at 0°C loses 10 seconds a day at 20°C. The metal linear expansion coefficient is:

Answer:

Solution:

Daily loss $≃ \frac{1}{2} α Δ T$ (86400). Thus $10 = \frac{1}{2} α (20) (86400)$ , giving $α = \frac{1}{86400}^{\circ} C^{- 1}$ .

Subject:PhysicsTopic:Heat & ThermoSubtopic:Thermal Expansion

⏱ 2mℹ️ Source: QB

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