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The length L (in centimetre) of a copper...

The length L (in centimetre) of a copper rod is a linear function of its Celsius temperature C. In an experiment, if `L=124.942` when `C=20 and L=125.134` when `C=110`, express L in terms of C.

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The correct Answer is:
`L= ( 0.192)/( 90) ( C - 20) + 124.942`
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KUMAR PRAKASHAN-STRAIGHT LINES-Exercise : 10.2
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