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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoThermal ExpansionHard2 minQB

PhysicsHardmultiple choice

A solid floats in a liquid. Both are warmed equally and obey $V_{i}^{'} = V_{i} (1 + γ_{i} Δ T)$ with positive coefficients and fixed masses. Choose true statements.

Options:(select one or more)

Answer:

A, C

Solution:

$\frac{f ^{'}}{f} = \frac{1 + γ _{1} Δ T}{1 + γ _{s} Δ T}$ . A and C follow. True weight mg stays fixed. Displaced volume = m/pl grows when liquid density decreases, so D false. The distinction between fraction and displaced volume matters.

Subject:PhysicsTopic:Heat & ThermoSubtopic:Thermal Expansion

⏱ 2mℹ️ Source: QB

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