Which of the following is correct about the correct measurement of length?

Measuring your classmate's height using long wooden scale

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Measuring your classmate's height using a small scale of

30 c m

long

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Measuring your classmate's height using a long steel rod

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All of the above

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Solution

The correct option is A Measuring your classmate's height using long wooden scale
$\begin{matrix} Wood does not expand or contract on heating or cooling, but steel does. So, a long wooden scale may be used to measure height. \end{matrix}$

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Which of the following is correct about the correct measurement of length?

The correct option is A Measuring your classmate's height using long wooden scale Wood does not expand or contract on heating or cooling, but steel does. So, a long wooden scale may be used to measure height.

The correct option is A Measuring your classmate's height using long wooden scale
$\begin{matrix} Wood does not expand or contract on heating or cooling, but steel does. So, a long wooden scale may be used to measure height. \end{matrix}$