Question:medium

The percentage error in the measurement of length when a metal scale calibrated at \(30^{\circ}C\) is used at \(-10^{\circ}C\) is (Coefficient of linear expansion of the metal \(= 12 \times 10^{-6}\ ^{\circ}C^{-1}\)). 

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Whenever temperature decreases from calibration point, scale contracts and introduces positive measurement error.
Updated On: Jun 22, 2026
  • 0.024
  • 0.036
  • 0.048
  • 0.012 \bigskip
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The Correct Option is C

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