First slide

Thermal expansion

Question

The variation of density of a solid with temperature is given by the formula

Moderate

A

$d_{2} = \frac{d_{1}}{1 + γ (t_{2} - t_{1})}$
B

$d_{2} = \frac{d_{1}}{1 - γ (t_{2} - t_{1})}$
C

$d_{2} = \frac{d_{1}}{1 - 2 γ (t_{2} - t_{1})}$
D

$d_{2} = \frac{d_{1}}{1 + 2 γ (t_{2} - t_{1})}$

Solution

$d_{t} = \frac{d_{0}}{(1 + gΔt)}$

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