The scale on a steel meter stick is calibrated at 15°C

PHYSICS · Subjective · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter

Problem

The scale on a steel meter stick is calibrated at 15°C. What is the error in the reading of 60 cm at 27°C?

\alpha_{\text{steel}} = 1.2 \times 10^{-5} \text{ (}^\circ\text{C)}^{-1}