For steel, . A rectangular steel sheet is heated through…

PHYSICS · Multi-part · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter

Problem

For steel,

\alpha =1.2\times10^{-5}\,\text{K}^{-1}

. A rectangular steel sheet is heated through

200^{\circ}\text{C}

. (a) Exact percentage increase in area (b) Percentage error of approximation