本题目来源于试卷: gc textbook chapter 13 temperature and kinetic theory，类别为 IB物理学
[问答题]
In the relation $\Delta$L = $\alpha$ $L_0$ $\Delta$T, should $L_0$ be the initial length, the final length, or does it matter? Explain.
参考答案:
To be precise, $L_0$ is to be the initial length
of the object. In practice, however,
since the value of the coefficient of expansion is so small, there will be
little difference in the calculation of $\Delta$L caused by using either the
initial or final length, unless the temperature change is quite large.
本题详细解析:
暂无
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