Measurement and Effects of Heat — Science STD 8 — Question
Maharashtra BoardEnglish MediumSTD 8ScienceMeasurement and Effects of Heat5 Marks
Question
Define coefficient off linear explansion of a solid. Write the formula for it and obtain its unit.
✓
Answer
Coefficient of linear expansion of a solid is defined as the increase in the length of a rod of the solid per unit initial length per unit rise in its temperature.
Coefficient of linear expansion of a solid, $\lambda=12-|1| 1 \Delta T$, where $I_1$ and $I_2$ are respectively the initial and final length of the rod of the solid and $\Delta T$ is the rise in its temperature.
Unit of $\lambda=$ unit of length unit of length $\times$ unit of temperature
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