PART - 2 CH - 10 Thermal Properties of Matter — Physics STD 11 Science — Question
Gujarat BoardEnglish MediumSTD 11 SciencePhysicsPART - 2 CH - 10 Thermal Properties of Matter1 Mark
Question
What is called coefficient of linear expansion?
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Answer
For a solid rod if increase in length is $\Delta L$ for $\Delta T$ increase in temperature then ratio of change per unit length $\left(\frac{\Delta L }{ L }\right)$ and increase in temperature $\Delta T$ is called the coefficient of linear expansion ( $\alpha$ ) i.e. $ \frac{\Delta l}{l}=\alpha \Delta T $ Where $\alpha$ is called coefficient of linear expansion.
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