A brass rod is 1.50 m long at 20 °C

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

Problem

A brass rod is 1.50 m long at 20 °C. Its coefficient of linear expansion is 1.9×10−5 K−11.9\times10^{-5}\,\text{K}^{-1}. The rod is heated to 100 °C. (i) Calculate the increase in length of the rod. (ii) Determine the percentage increase in its length, correct to three significant figures.

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