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CGP EDU Academic Team
Published on: September 12, 2026
The volume of a metal sphere increases by 0.24% when its temperature is raised by 40°C. The coefficient of linear expansion of the metal is .......... °C
Text Solution
Verified by ExpertsThe correct answer is:
A
$\gamma = \frac{\Delta V}{V.\Delta T} = \frac{0.24}{100 \times 40} = 6 \times 10^{-5} /^\circ C$ $\Rightarrow \alpha = \frac{\gamma}{3} = 2 \times 10^{-5} /^\circ C$
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